Transparent silicone hand grip ball wrist exercise relief pressure ball finger exercise equipment rehabilitation Descriptions: 1. Product name: Egg-shaped transparent silicone grip ball hand training physical therapy injury rehabilitation finger booster 2. Material: TPE 3. Features: 1) Made of durable and high elastic material, this egg-shaped ball is flexible for grip and suitable for all ages. 2) Designed for primary strength and rehabilitation training, the palm muscles can exercise and improve the flexibility of the fingers. 4. Size: Approximately 5.84.4 cm/2.281.73 in 5. Grip: (approx.) soft grip: 10 kg

middle grip: 20 kg

hard grip: 40 kg