Description: Quality Material: The Wrist Return Ball is made of quality TPE material, which is wear resistant for long term repeated use.Exercise Reaction Ability: The Wrist Band Ball is suitable for wrist exercises or play, helping to improve reaction ability and hand eye coordination.Fun to Play: The Bouncy Ball comes with a 100cm/39.37inch long rope and a 23cmx5cm/9.06inchx1.97inch wristband. It's elastic and easy to use, making it a funny ball toy.Wide Application: This Wristband Ball Toy has a compact structure and lightweight design, making it easy to carry around. It's suitable for both indoor and outdoor use.Great Gift: This Training Ball Equipment makes an interesting gift for boys, girls, family members, or friends. Specification: Material: TPE Size Chart: Ball Diameter: 6cm/2.36inchString Length: 100cm/39.37inchWaist Band:23cmx5cm/9.06inchx1.97inch Package Includes: 1Wrist Band Ball Note: Please allow slightly errors 1-2cm differences due to manual measurement.