Munchables Adjustable Chew Bracelets feature smooth silicone beads strung on a nylon cord.

Sizing (inner diameter measurements):

• Small – 4 to 5cm
• Medium – 5 to 6cm
• Large – 6 to 7cm

From Laura, the owner of Munchables: "The size large fits on my 16cm (6.25") circumference wrist."