Features: Heavy Gripper for a Strong Hold: The hand exerciser grip comes with powerful TPR grips and high strength alloy spring; they have grooves and protrusions to discourage slipping away. Effective Grip Strengthener: Fitness handgrips strengthener delivers effective force to your wrist, finger, and forearm muscles; its design channels the resistance from its rust-resistant spring to your hand. Adjustable Hand Strengthener: From 10kg to 100kg,you can adjust its resistance to suit your level; take it slowly and then go hard on yourself, all the while increasing your hand grip strength. Take Anywhere Wrist Strengthener: Strengthen Your Wrists After a bad injury or a ligament tear; take your new strengthening companion anywhere you want; just 16cm makes it very portable. for Smart Counting Grip Strengthener: Our grip trainer equipped with latest counting function, record your grip number every for time, and help you knows the training progress better. (Press the button firmly or rotate button) Specifications: Material: PP+TPR+Steel Color: Light Blue/Black/Light Green Package Weight: approx.235g Size: approx.16x14.5cm/6.29x5.71in Package Includes: 1Pc x Hand Grips note: Please allow 1-2cm error due to manual measurement. Please make sure you don'for t to mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!