Speedo Kids' Begin to Swim Fabric Arm Bands One size: 2-12 yrs./max weight 110 lbs. Soft polyester material provides maximum comfort Dual chamber heavy duty inflatable arm band for added safety and durability High visibility bright inner fabric for increased pool safety One size: 2-12 yrs./max weight 110 lbs. Made by Speedo, the world's #1 swim brand For safety purposes, base of safety valve must be squeezed for proper inflation and deflation