Angry Frog Shape Finger Grip Device Finger Strength Exercise Grip Ring(80LB (Gray))

1. Grip strength training, instant relaxation and stimulation of palm acupoints
2. Weight: about 105g
3. Size: 10x10.5cm
4. Hardness: 20LB green, 40LB blue, 60LB orange, 80LB gray
5. Uses: finger grip exercise recovery, etc.
6. Material: Silicone