Description: As a simple and convenient way to enhance your grip strength, our hand heavy gripper can effectively increase hand strength, improve finger and hand dexterity, and reduce tired and stress. Suitable for people of all age. Unlike most workouts, you can take these hand trainer with you and exercise everywhere you go. This product can be easily carried in your backpack. It is constructed of silicone material. The length of this product is 7.5cm. The thickness of the product is 2.3cm. This product is perfectly suitable for home, household, dorm, office, gym, etc. Item Name: Hand Grip Trainer Material: Silicone Strength Tension: Color Atrovirens: 20-30LB Color Pink: 30-40LB Color Blue: 40-50LB Color Grey: 50-60LB Color Black: 70-80LB Features: Lightweight, Practical, Soft Size Details: Length: 7.5cm/2.95"(Approx.) Thickness: 2.3cm/0.91"(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Hand Grip Trainer