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Feature

Practical: Spherical shape increases forearm and grip strength, boosting endurance
Fun and Open-hand Design: Muscles tendons lay ergonomically and train efficiently
High Quality: Specially designed ball with Solid plastic. Anti-skid design improve your exercise performance
Easy to Install: Come with stainless steel hooks and reinforced nylon webbing. Can be installed anywhere
Ball Diameter: 2.8"/7.2cm, fits for normal & men handsHanging straps length: 5.7inches