Features<br>- Size: Approx. 8.5 * 7.1 * 2.1cm<br>- Small， light weight and convenient to operate<br>- Use the hand exerciser to warm up before playing and to strengthen and stretch the fingers.<br>- Unique ergonomic design allows you to exercise fingers， wrists and forearms while practicing the correct action for playing musical instruments.<br>- Practice without your instrument anywhere anytime， increase finger speed， strength and independence.<br>- Designed for all instrumentalists， from beginners to professionals.<br>- Suitable for the auxiliary exercise of instrument playing， physical exercise and other activities.<br><br>Package Including<br>1 * Portable Grip Tension Trainer Hand Exerciser for Guitar / Bass / Violin<br /></p> <br /></p><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/564d48904888c504ce4a73e8-2-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/564d48904888c504ce4a73e8-3-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/564d48904888c504ce4a73e8-4-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/564d48904888c504ce4a73e8-5-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/564d48904888c504ce4a73e8-6-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/564d48904888c504ce4a73e8-7-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/564d48904888c504ce4a73e8-8-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><p style="text-align: center;"><p style="text-align: center;"><p style="text-align: center;">