The Pop It Bracelet is a flexible silicone design with 6 pop bubbles. It is worn like a watch on the wrist. The size is very generous to allow the wearer to fidget with the bracelet and push the bubbles in and out. It has 3 size adjustments with a minimum diameter of 20cm and a maximum diameter of 22cm. NB: There is a small metal stud in the band to hold it in place on the wrist.