Material: finger trainer and grip strength trainer is made of 100% environmentally friendly premium silicone, which feels comfortable during hand gymnastics training. Functional: Using the finger strength trainer is a great option for recreation if you suffer from carpal tunnel, tendinitis, tennis elbow, etc. You can also use it when you are finger exercising and disease prevention. Carry it with you: Exercise your hands and forearms from anywhere, whether you are at home, in the office, on foot, in the car or doing your favorite sport, as the rings are light and easy to carry. Application: Perfect for men, women, teenagers, children and seniors. Ideal for climbing, golf, tennis, bodybuilding, guitarists, drummers, pianists and many more. Quantity: 3Pcs finger stretcher and 3Pcs handle ring, builds strength in your fingers, wrists, elbows and forearms. Product s Finger trainer climbing hand trainer set, hand grip trainer Strengthener grip balls and finger stretcher silicone to strengthen the fingers and forearms Features: HIGH QUALITY: Made of 100% high quality thermoplastic rubber, non-toxic and BPA free. Due to their small size and light weight, the hand trainers can be taken anywhere. Free of squeaky and annoying noises Free from unpleasant silicone odor Specification: Material: silicone Size: handle ring outer diameter 7 cm, inner diameter 3.3 cm, length of the finger strut 7.5 cm, width 4 cm Usage: 1. Place loops over each finger, starting with your fingertips close together. 2. Slowly spread your fingers apart and hold for 3 seconds, then slowly relax. 1 to 30 repetitions in three sets. Scope of delivery: 3Pcs Finger Carrier 3Pcs handle ring