Grip Strength Trainer,Hand Strengthener,Forearm Workout - Trainer Silicone Rings for Rock Climbing, Athletes & Stress Relief Rehabilitation, 3 Resistance Levels(3 PCS) Lab Supplies Please check the second picture

Please check the second picture for more detail size

Premium Satin Material: The base of the belt is made from smooth satin

Good Sealing

Simple maintenance

Grip Strength Trainer,Hand Strengthener,Forearm Workout - Trainer Silicone Rings for Rock Climbing, Athletes & Stress Relief Rehabilitation, 3 Resistance Levels(3 PCS) Lab Supplies Please check the second pictureStrengthen your wrists, improve the dexterity of your fingers and increase the strength your hands can apply while reducing fatigue. Its rally value is from 30 to 50 lb. Help balance your grip muscles and your expanding muscles. Ideal for athletes(tennis, basketball, boxing, golf and shooting)and musicians (guitar players, bass players, pianists and violinists). Portable and easy to fit in bag or pocket. You can get repetitions in while driving, at