Description: 【Hydraulic Damping Grip Strengthener】: This hand grip strengthener offers an adjustable force range of 50-165lbs, making it suitable for various strength training needs. The hydraulic damping brake system is engineered for stability and durability, providing consistent high resistance through fluid dynamics and a high strength hydraulic cylinder. 【Ergonomic Design】: The Grip Strength Trainer thickened handle is designed for comfort and durability. The grip distance can be adjusted according to your preference, featuring a thickened threaded shaft for added convenience. 【Lever Transmission Structure】: The Hand Gripper is designed with a reinforced dual track transmission mechanical slider, ensuring a smoother exercise experience. 【Adjustable Resistance】: Grip Trainer with 12 adjustable gears, this grip training equipment offers a wide range of resistance levels The stepless hydraulic adjustment allows for easy and flexible strength adjustment. 【Product Details】: Hand Grip Strength Training Tool is made of durable nylon, PP and carbon steel, the product measures 6.72inchx7.13inch. Each package includes 1pc hydraulic grip strengthener. Size Chart: 17.06cmx18.11cm/6.72inchx7.13inch Package Includes: 1 hydraulic hand grip strengthener Note: Please allow slightly errors due to manual measurement and different monitors.