KMB117blk Coal Black Concrete Bracelet


KMB117blk Coal Black Concrete Bracelet



This bracelet at 6mm wide features coal black concrete on both sides. Looks amazing with kmb115 and kmb116 – mix and match with gray for a unique set. Available at 63mm inside diameter. Custom sizes available at added charge.

Prices shown in USD.


Materials Concrete + Stainless Steel
Size 6mm x 63mm i.d.
Lead Time 24 hours


Additional information


We use a new generation of concrete for our jewelry called ultra high performance concrete which has the compressive strength of 150 Mpa. Over 20 times stronger than traditional concrete. We offer a lifetime warranty on these rings, if the concrete were to chip or break at anytime, we will replace it.

Sizing Information

These bracelets fit an average size wrist. We can customize them to be larger or smaller. Please email for more information.