8 LEVEL ADJUSTMENT This is an upgraded finger exerciser. The finger traine2r resistance level of 1, 2, 3, 4, 5, 6, 7 and 8. Simply move the hook to adjust the resistance. High-quality material: the hand traine2r finger traine2r is made of soft and odourless silicone material, which is comfortable in the hand and is durable. Hand therapy: a great grip strength traine2r tool to strengthen hand strength and help with pain and injuries. Improves finger strength and flexibility. Easy to carry: with silicone finger traine2r small size and light weight, the hand gripper fits easily in any bag, so you can train anytime and anywhere. For athletes and musicians: the grip strength traine2r improves strength and flexibility in wrists, fingers and forearms. An ideal gift for rock musicians.