Specifications: 1.Hand exerciser improves strength, power and speed in the wrists, fingers and forearms. This hand exerciser is perfect for fitness and sports enthusiasts. 2. Hand grip strengthener is ideal for improving strength, power and speed in the wrists, fingers and forearms. 3. Non-slip handles covered with soft, comfortable and durable rubber for frequent and comfy usage. 4.Just a few minutes everyday, you will have strong grip strength Features: Resistance range:10kg to 60kg Color:Black/Gray/Blue Quantity:1PC Size:As picture shows(Approx.) Material:ABS and stainless steel and rubber Package Included:1PC Hand Grip Trainer Note: 1.Please allow 0.1-0.3 cm differences due to manual measurement, thanks. 2.Please understand because of the light irradiation or computer display difference, so I can't guarantee photos and real color is 100 percent the same.