Description: 3PCS HAND GRIP STRENGTHENER SET: Includes Adjustable Finger Trainer, Finger Stretcher Resistance Band, Hand Strength Grip Rings. Helps strengthen and tone your hands, fingers, wrists, forearms, brachialis muscles. ADJUSTABLE FINGER STRENGTH TRAINER: The Finger Strengthener provides you with 3 resistance levels( Black 13LB, 17LB and 21LB; Gray 6.6LB, 8.8LB and 11LB. You can choose the appropriate level according to your grip strength. Take your time and gradually increase the resistance to build finger strength. EXERCISE ANYTIME AND ANYWHERE: Finger Grip strengthener set is compact and portable, even fits in your pocket. You can use them anytime and anywhere (home, office, bus, plane, train, on the road, on a trip, walking the dog, walking, anytime you want to exercise). COMFORTABLE AND DURABLE: Finger exerciser set are made of high quality silicone materials, is ergonomic and comfortable to hold. Suitable for big and small hands, teens, adult men women and seniors. Durable and can be used for a long time. FIT FOR EVERYONE: Grip Strengthening Set are great for improving wrist, finger and forearm strength, power and flexibility. Climbers, athletes, Musician, or just about everyone to improve grip, finger dexterity, and wrist arm strength. Perfect gift for family and friends. Specification: Material: Silicone Size Chart: Finger Trainer:11.5cmx10cmx2cm/4.53inchx3.94inchx0.79inch Package Includes: 1 Finger Strengthener 1 Finger Stretcher Resistance Band 1 Hand Strength Grip Rings Note: Please allow slightly errors due to manual measurement and different monitors.