1. Arm strength improvement, decompression and relaxation, training and rehabilitation
2. Good toughness, fast strength feedback, and enhanced finger grip
3. Easy to clean, non-slip grip
4. Ring design, uniform force, fit palm shape
5. One-piece thermoforming, skin-friendly and comfortable
6. Freely twist without deformation
7. Material: Silicone
8. Green: Grip 30 lbs, Pull 6.6 lbs
9. Blue: Grip 40 lbs, Pull 8.8 lbs
10. Orange: Grip 50 lbs, Pull 11 lbs
11. Dimensions: Grip: 6.8 x 6.8 x 1.8cm, Pull: 8.1 x 3.7 x 0.25cm
12. Weight: Green: 56g, Blue: 59g, Orange: 61g