If you're all about the details than this is the bracelet for you. Perfect for reminding you of the circumference of your wrist, it's made from a 13mm wide ruler but with comfortable rounded ends. It features the popular and functional unit of measurement favored by jewelers, gemologists, archaeologists and the majority of the (intelligent) world.

High grade stainless steel, 1/2" wide x 6" long (13mm x 15cm).