Features 1. Made of top-quality Silicone, not easy to tear. It is washable and can be use frequently and comfortably. 2. Hands Trainers: To learn piano, practice hands first. So we design this five-finger training tool, for piano beginners and players to exercise hands and train finger strength and correct finger posture. Suitable for most musical instrument players and it can also be used for finger strength exercise in daily life. 3. Ergonomic design for all hands: The Finger Stretcher is specially designed with flexible finger holes so that the straps don't slip off your fingers during exercise. It fits all hand sizes and is perfect for men, women, seniors and teens. It fits nicely in your bag or tote. You can do repetitive workouts while commuting, at the office or anywhere. 4. Rehabilitation and Prevention: This is a great option if you suffer from carpal tunnel, tennis elbow, and are on your way to recovering from a broken or ruptured wrist or tendon. Or when you're typing, texting, driving or any other activity that requires the use of your grip muscles. 5. Fitness and sports enthusiasts: When you work out indoors or outdoors, hand muscles can be inadvertently strained or sprained. It improves finger strength for athletes (rock climbers, fitness, tennis, baseball, boxing, tennis, golf and shooting) and musicians (guitarists, bassists, pianists and violinists). Specification Material: Silicone Color: Green, Blue, Orange, Light grey, Dark grey, Black Size: 9.2 x 6.3 cm Weight: 12 g Package Include: 1x Finger Trainer