{"id":1739,"date":"2026-08-20T17:48:26","date_gmt":"2026-08-20T20:48:26","guid":{"rendered":"https:\/\/kubolab.com.br\/produto\/concavos-anel-arquitetonico-autoral-kubolab\/"},"modified":"2026-10-06T12:33:27","modified_gmt":"2026-10-06T15:33:27","slug":"concavos-anel-arquitetonico-autoral-kubolab","status":"publish","type":"product","link":"https:\/\/kubolab.com.br\/en\/product\/concavos-anel-arquitetonico-autoral-kubolab\/","title":{"rendered":"C\u00f4ncavos \u2014 Anel Arquitet\u00f4nico Autoral | KUBOLAB"},"content":{"rendered":"

7,8 gramas<\/strong> \u2014 o mais arquitet\u00f4nico dos an\u00e9is, e ainda assim uma fra\u00e7\u00e3o do que a mesma pe\u00e7a pesaria em metal. Elementos verticais repetidos emergem de um anel central e formam um per\u00edmetro estruturado ao redor de um n\u00facleo rebaixado. A luz passa entre os intervalos, e a sombra vira parte do desenho.<\/p>\n

Para quem gosta de ritmo e repeti\u00e7\u00e3o.<\/strong> O C\u00f4ncavos \u00e9 o anel mais rigoroso do cat\u00e1logo: nada nele \u00e9 acidental, e a regularidade \u00e9 o ponto. Costuma agradar quem trabalha com arquitetura ou desenho, porque a l\u00f3gica est\u00e1 exposta.<\/p>\n

O princ\u00edpio formal.<\/strong> Parte de um vocabul\u00e1rio raramente explorado em acess\u00f3rios: a colunata. A repeti\u00e7\u00e3o de elementos verticais ao redor de um per\u00edmetro \u00e9 a l\u00f3gica dos templos gregos e dos claustros medievais, onde a repeti\u00e7\u00e3o modular cria ritmo e a sombra tem fun\u00e7\u00e3o de composi\u00e7\u00e3o. Na escala do dedo, esse sistema inteiro cabe em 3,5 cent\u00edmetros.<\/p>\n

Feito no seu tamanho<\/strong>, do aro 12 ao 24, pronto em 1 dia \u00fatil.<\/p>\n

Qual \u00e9 o seu aro?<\/h2>\n

Me\u00e7a na articula\u00e7\u00e3o, n\u00e3o na base do dedo.<\/strong> \u00c9 o erro mais comum: a pessoa mede a base, pede o aro certo para a base, e o anel n\u00e3o passa na dobra do dedo. O anel precisa passar pelo ponto mais largo \u2014 e esse ponto \u00e9 a articula\u00e7\u00e3o.<\/p>\n

Como medir com barbante ou tira de papel<\/strong> 1. Enrole o barbante ao redor da articula\u00e7\u00e3o do dedo, no ponto mais largo. 2. Marque onde ele se encontra e estique na r\u00e9gua. 3. Essa medida em mil\u00edmetros \u00e9 a circunfer\u00eancia. Consulte a tabela abaixo.<\/p>\n

Como medir por um anel que j\u00e1 serve<\/strong> Me\u00e7a o di\u00e2metro interno do anel, de borda a borda por dentro, em mil\u00edmetros. Consulte a segunda coluna da tabela.<\/p>\n

Duas coisas que mudam o resultado<\/strong> Me\u00e7a no fim do dia \u2014 o dedo incha ao longo do dia e com o calor, e um anel que serve de manh\u00e3 pode apertar \u00e0 noite. E se a sua articula\u00e7\u00e3o for bem mais larga que a base do dedo, o anel vai ficar um pouco folgado na base. Isso \u00e9 normal e esperado: \u00e9 o pre\u00e7o de ele conseguir entrar.<\/p>\n

Entre dois n\u00fameros?<\/strong> Escolha o maior.<\/p>\n

Ainda em d\u00favida? Escolha o mais pr\u00f3ximo e pe\u00e7a sem medo: se errar, trocamos uma vez, sem custo da pe\u00e7a.<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Aro<\/th>\nCircunfer\u00eancia<\/th>\nDi\u00e2metro interno<\/th>\n<\/tr>\n<\/thead>\n
12<\/td>\n51,8 mm<\/td>\n16,5 mm<\/td>\n<\/tr>\n
13<\/td>\n53,1 mm<\/td>\n16,9 mm<\/td>\n<\/tr>\n
14<\/td>\n54,4 mm<\/td>\n17,3 mm<\/td>\n<\/tr>\n
15<\/td>\n55,7 mm<\/td>\n17,7 mm<\/td>\n<\/tr>\n
16<\/td>\n57,0 mm<\/td>\n18,1 mm<\/td>\n<\/tr>\n
17<\/td>\n58,3 mm<\/td>\n18,5 mm<\/td>\n<\/tr>\n
18<\/td>\n59,5 mm<\/td>\n18,9 mm<\/td>\n<\/tr>\n
19<\/td>\n60,8 mm<\/td>\n19,4 mm<\/td>\n<\/tr>\n
20<\/td>\n62,1 mm<\/td>\n19,8 mm<\/td>\n<\/tr>\n
21<\/td>\n63,4 mm<\/td>\n20,2 mm<\/td>\n<\/tr>\n
22<\/td>\n64,7 mm<\/td>\n20,6 mm<\/td>\n<\/tr>\n
23<\/td>\n66,0 mm<\/td>\n21,0 mm<\/td>\n<\/tr>\n
24<\/td>\n67,2 mm<\/td>\n21,4 mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Ficha t\u00e9cnica<\/h2>\n
    \n
  • Peso<\/strong> 7,8 g<\/li>\n
  • Medidas<\/strong> 3,5 \u00d7 3,5 \u00d7 3,5 cm<\/li>\n
  • Material:<\/strong> PLA, pol\u00edmero de fonte vegetal renov\u00e1vel \u2014 n\u00e3o deriva de petr\u00f3leo.<\/li>\n
  • Tamanhos:<\/strong> aro 12 ao 24.<\/li>\n
  • Feito em:<\/strong> S\u00e3o Paulo, impresso e montado no pr\u00f3prio est\u00fadio.<\/li>\n
  • Prazo:<\/strong> feito no seu tamanho, pronto em 1 dia \u00fatil.<\/li>\n
  • Troca de tamanho:<\/strong> se errar, imprimimos uma pe\u00e7a nova no tamanho certo sem custo da pe\u00e7a \u2014 voc\u00ea paga s\u00f3 o frete de ida e retorno.<\/li>\n
  • Cuidados:<\/strong> evite calor acima de 50 \u00b0C \u2014 nunca deixe no carro. Retire para lavar as m\u00e3os e tomar banho. Guarde em local seco, longe do sol.<\/li>\n<\/ul>\n

    Perguntas frequentes<\/h2>\n

    \u00c9 pl\u00e1stico?<\/strong>
    \u00c9 PLA, um pol\u00edmero feito de fonte vegetal renov\u00e1vel \u2014 n\u00e3o vem de petr\u00f3leo. \u00c9 o que permite uma pe\u00e7a deste volume ficar em torno de 6 gramas.<\/p>\n

    Se \u00e9 biodegrad\u00e1vel, vai se desfazer com o tempo?<\/strong>
    N\u00e3o. O PLA s\u00f3 se decomp\u00f5e em compostagem industrial, com calor e umidade controlados. Na gaveta e no uso normal, \u00e9 est\u00e1vel por anos.<\/p>\n

    Como sei o meu tamanho?<\/strong>
    Me\u00e7a a articula\u00e7\u00e3o do dedo com um barbante, no ponto mais largo \u2014 n\u00e3o a base. O guia completo est\u00e1 nesta p\u00e1gina, com tabela de convers\u00e3o.<\/p>\n

    E se eu errar o tamanho?<\/strong>
    Trocamos uma vez: imprimimos a pe\u00e7a nova no tamanho certo, sem custo da pe\u00e7a. Voc\u00ea paga s\u00f3 o frete de ida e retorno.<\/p>\n

    Quanto tempo demora?<\/strong>
    Cada anel \u00e9 feito no seu tamanho e fica pronto em 1 dia \u00fatil.<\/p>\n

    Posso molhar?<\/strong>
    Melhor n\u00e3o. Retire para lavar as m\u00e3os e tomar banho, e evite piscina e mar.<\/p>\n

    N\u00e3o achei o meu aro nas op\u00e7\u00f5es.<\/strong>
    Fazemos do 12 ao 24 \u2014 uma faixa mais larga que a maioria das marcas, justamente porque tamanho grande \u00e9 dif\u00edcil de encontrar. Se o seu est\u00e1 fora disso, fale com a gente.<\/p>","protected":false},"excerpt":{"rendered":"

    Elementos verticais em ritmo constante ao redor de um n\u00facleo rebaixado. 3,5 cm e 7,8 g.<\/p>","protected":false},"featured_media":1706,"template":"","meta":{"kbl_en_title":"C\u00f4ncavos Ring","kbl_en_excerpt":"

    Vertical elements in a steady rhythm around a recessed core. 3.5 cm and 7.8 g.<\/p>","kbl_en_content":"

    7.8 grams<\/strong> \u2014 the most architectural of the rings, and still a fraction of what the same piece would weigh in metal. Repeated vertical elements rise from a central band and form a structured perimeter around a recessed core. Light passes through the intervals, and the shadow becomes part of the design.<\/p>\n

    For those who love rhythm and repetition.<\/strong> The C\u00f4ncavos is the most rigorous ring in the collection: nothing in it is accidental, and regularity is the point. It tends to appeal to people who work in architecture or drawing, because the logic is on display.<\/p>\n

    The formal principle.<\/strong> It draws on a vocabulary rarely explored in accessories: the colonnade. Vertical elements repeated around a perimeter are the logic of Greek temples and medieval cloisters, where modular repetition creates rhythm and shadow plays a compositional role. At the scale of a finger, that whole system fits into 3.5 centimetres.<\/p>\n

    Made in your size<\/strong>, ring sizes 12 to 24, ready in 1 business day.<\/p>\n

    What is your ring size?<\/h2>\n\n

    Measure across the knuckle, not the base of the finger.<\/strong> It's the most common mistake: people measure the base, order the right size for the base, and the ring won't go over the knuckle. The ring has to pass the widest point \u2014 and that point is the knuckle.<\/p>\n

    How to measure with string or a strip of paper<\/strong> 1. Wrap the string around your knuckle, at its widest point. 2. Mark where it meets and lay it flat on a ruler. 3. That measurement in millimetres is the circumference. Check the chart below.<\/p>\n

    How to measure using a ring that already fits<\/strong> Measure the inside diameter of the ring, from edge to edge on the inside, in millimetres. Check the second column of the chart.<\/p>\n

    Two things that change the result<\/strong> Measure at the end of the day \u2014 fingers swell during the day and in the heat, and a ring that fits in the morning can feel tight at night. And if your knuckle is much wider than the base of your finger, the ring will be a little loose at the base. That is normal and expected: it's the price of getting it on.<\/p>\n

    Between two sizes?<\/strong> Choose the larger one.<\/p>\n

    Still unsure? Choose the closest size and order with confidence: if it's wrong, we exchange it once, at no cost for the piece.<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    Size (BR)<\/th>\nCircumference<\/th>\nInside diameter<\/th>\n<\/tr>\n<\/thead>\n
    12<\/td>\n51.8 mm<\/td>\n16.5 mm<\/td>\n<\/tr>\n
    13<\/td>\n53.1 mm<\/td>\n16.9 mm<\/td>\n<\/tr>\n
    14<\/td>\n54.4 mm<\/td>\n17.3 mm<\/td>\n<\/tr>\n
    15<\/td>\n55.7 mm<\/td>\n17.7 mm<\/td>\n<\/tr>\n
    16<\/td>\n57.0 mm<\/td>\n18.1 mm<\/td>\n<\/tr>\n
    17<\/td>\n58.3 mm<\/td>\n18.5 mm<\/td>\n<\/tr>\n
    18<\/td>\n59.5 mm<\/td>\n18.9 mm<\/td>\n<\/tr>\n
    19<\/td>\n60.8 mm<\/td>\n19.4 mm<\/td>\n<\/tr>\n
    20<\/td>\n62.1 mm<\/td>\n19.8 mm<\/td>\n<\/tr>\n
    21<\/td>\n63.4 mm<\/td>\n20.2 mm<\/td>\n<\/tr>\n
    22<\/td>\n64.7 mm<\/td>\n20.6 mm<\/td>\n<\/tr>\n
    23<\/td>\n66.0 mm<\/td>\n21.0 mm<\/td>\n<\/tr>\n
    24<\/td>\n67.2 mm<\/td>\n21.4 mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Specifications<\/h2>\n
      \n
    • Weight<\/strong> 7.8 g<\/li>\n
    • Dimensions<\/strong> 3.5 \u00d7 3.5 \u00d7 3.5 cm<\/li>\n
    • Material:<\/strong> PLA, a plant-based polymer \u2014 not derived from petroleum.<\/li>\n
    • Sizes:<\/strong> ring sizes 12 to 24 (Brazilian scale; about US 6 to 10\u00be).<\/li>\n
    • Made in:<\/strong> S\u00e3o Paulo, printed and assembled in our own studio.<\/li>\n
    • Lead time:<\/strong> made in your size, ready in 1 business day.<\/li>\n
    • Size exchange:<\/strong> if you get the size wrong, we print a new piece in the right size at no cost for the piece \u2014 you only pay shipping both ways.<\/li>\n
    • Care:<\/strong> avoid heat above 50 \u00b0C \u2014 never leave it in a car. Take it off to wash your hands and shower. Store dry, away from sunlight.<\/li>\n<\/ul>\n

      FAQ<\/h2>\n

      Is it plastic?<\/strong>
      It's PLA, a polymer made from a renewable plant source \u2014 it doesn't come from petroleum. That is what lets a piece with this much volume weigh around 6 grams.<\/p>\n

      If it's biodegradable, will it fall apart over time?<\/strong>
      No. PLA only breaks down in industrial composting, under controlled heat and humidity. In a drawer and in everyday wear, it is stable for years.<\/p>\n

      How do I know my size?<\/strong>
      Measure your knuckle with a piece of string, at its widest point \u2014 not the base. The full guide is on this page, with a conversion chart.<\/p>\n

      What if I get the size wrong?<\/strong>
      We exchange it once: we print a new piece in the right size, at no cost for the piece. You only pay shipping both ways.<\/p>\n

      How long does it take?<\/strong>
      Every ring is made in your size and is ready in 1 business day.<\/p>\n

      Can it get wet?<\/strong>
      Better not. Take it off to wash your hands and shower, and keep it away from pools and the sea.<\/p>\n

      My size isn't among the options.<\/strong>
      We make sizes 12 to 24 \u2014 a wider range than most brands, precisely because larger sizes are hard to find. If yours is outside that range, talk to us.<\/p>","kbl_en_seo_title":"C\u00f4ncavos \u2014 Architectural 3D-Printed Ring | KUBOLAB","kbl_en_seo_desc":"C\u00f4ncavos ring: the vertical rhythm of a colonnade at 3.5 cm, 7.8 g. Designer piece by KUBOLAB, made in your size, ready in 1 business day."},"product_brand":[129],"product_cat":[21],"product_tag":[],"class_list":["post-1739","product","type-product","status-publish","has-post-thumbnail","product_brand-kubolab","product_cat-anel","pa_cor-azul","first","instock","taxable","shipping-taxable","purchasable","product-type-variable"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/kubolab.com.br\/en\/wp-json\/wp\/v2\/product\/1739","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kubolab.com.br\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/kubolab.com.br\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kubolab.com.br\/en\/wp-json\/wp\/v2\/media\/1706"}],"wp:attachment":[{"href":"https:\/\/kubolab.com.br\/en\/wp-json\/wp\/v2\/media?parent=1739"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/kubolab.com.br\/en\/wp-json\/wp\/v2\/product_brand?post=1739"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/kubolab.com.br\/en\/wp-json\/wp\/v2\/product_cat?post=1739"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/kubolab.com.br\/en\/wp-json\/wp\/v2\/product_tag?post=1739"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}