Hand Trainer Finger Trainer, spring-loaded hand-held hand training ball for therapy, musicians, athletesUNIQUE AND HIGH-PERFORMANCEThe environmentally friendly silicone provides good grip during training, and the copper core spring provides good resistance for strength training, so you can choose different tensions for each finger, and choose according to your needs. Exercise fingers.MULTI-FUNCTIONThis five-key finger training device is specially developed for many musical instruments such as guitar and trumpet. It also helps your finger strength training; the finger trainer is very suitable for musicians (guitar, piano, violin, etc.) , Athletes (golf, racket sports, etc.) or physical therapy to develop and maintain the strength and agility of the fingers, hands, wrists and forearms, and enhance the strength, flexibility, coordination and speed of the fingers.VERY PORTABLEPortable size, you can put it in a suitcase, pocket, purse, purse, etc. The finger trainer can be used anywhere, and can be used at any time, whether it is on the train, in the office or watching TV At the same time, the slim size allows you to hold it in your palm at any time, and you can carry it with you to exercise your fingers anytime, anywhere.HIGH QUALITYThe finger trainer is made of high quality, high quality spring, new ABS plastic, soft silicone handle and button cap. It is comfortable to hold, easy to play, durable enough to train every finger and the entire hand. It won't hurt your fingers. Compared with other finger trainers, it is more durable and has a longer lifespan.Color: random colorSize: 972.5cmQuantity: 1pcKind tips:1.As different measuring methods,it will occur 1-3 cm deviation about the items,please ensure that it is okay for you before ordering.2. Because of different monitors and lamplight, the picture may not reflect the actual color of the item, really thank you for your kind understanding.3. Only the above package contents, excluding other products.