Spiky Ball Hollow Soft Transparent Strength Recovery Exercise Stress Relief Massage Ball for Hand Wr

Feature: 1. Office health products for keyboard workers can improve grip, hand endurance, flexibility and muscle tension. 2. Using the grip ball for exercise can reduce nodules and tightness, relieve muscle soreness, improve sports performance, and increase flexibility. 3. A hand therapy ball, can perform grip exercises, fingers training, wrist muscles, assist in rehabilitation training after injury, and reduce stress. 4. Small size, light weight, pointed design, help exercise fine and rough motor skills, and can also be used for massage. 5. Made of material, excellent elasticity and strength, good touch feel, hollow soft ball, no deformation when pressed at will. Specification: Item Type: Spike Ball Material: Hardness: Hollow Soft Ball Package List: 1 x Spike Ball Grip Ball Note: Manual measurement, please allow 0.3‑0.7in error.