• Gray 60LB: about 27KG, it feels hard, suitable for men's daily exercise
• Baby blue 40LB: about 18KG, feels a little hard, suitable for women
• Pink 20LB: about 10KG, soft to the touch, suitable for children and women with little strength
• Enhance hand strength, full elasticity, comfortable grip, exercise finger flexibility
• Small and easy to store, you can play at home or out
• No deformation when twisted, wear-resistant and elastic, decompress and relax fingers
• Four-finger groove design, not easy to slip
• Add thumb press position so that every finger can be trained
• Waterproof and antifouling, easy to clean

Specification:

• Material: Silicone
• Size: 11.3 x 6.8cm, thickness 3.2cm
• Weight: Pink 20LB 84g, Baby Blue 40LB 89g, Gray 60LB 94g