Guitarist Finger Exerciser Medium Tension Grip Trainer for Guitar Bass Piano describe: Specification: Type: Hand Exerciser Material: plastic + silicone Quantity: 1 piece feature: 1. Made of high quality plastic material, durable. 2. Practice finger dexterity and strength. Suitable for guitar, bass, piano, violin. 3. Hand exercise grips, an essential tool for all music players. 4. Safe and convenient exercise for strength, endurance, flexibility and coordination. 5. Comfortable finger pads that allow you to adjust individual finger tension from light to heavy, providing an all-in-one hand fitness for musicians. Notice: Due to different monitors and lighting effects, the actual color may be slightly different from the picture color. The package includes: 1 hand exerciser