Exercise Balls features: Adjustable Hand Power Grip Hand Exerciser Gripper 10-40 Kg For Wrist Forearm Color: we send based on the color or size of the main image of the product page. Quantity：we send based on quantity on title, if there is no quantity in the title, we send based on description. Search term: 10-40 Kg, Adjustable Heavy Grips, Hand Gripper, Gym Power Fitness, Hand Exerciser, Grip Wrist Forearm Strength, Training Hand Grip Features: Simple design with exquisite appearance. Single hand power grip. Sturdy and robust design. 10kg - 40kg adjustable range, You can adjust the strength tension from 10kg to 40kg by turning the red rotary knob. Lightweight and portable, you can carry it with you to exercise anytime. Descriptions: An excellent training tool that strengthens your hands, wrist and forearm. Suitable for the elderly, the office crowd and sports enthusiasts. Specifications: Material: New reinforced ABS, TPR elastic plastic, Polypropylene and fine steel Color: orange& black Size: 14.8*10.8 *2cm Strength Range: 10-40 Kg Package Included: 1 x Adjustable Hand Grips 10-40Kg Notes: 1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2.Please allow slight deviation for the measurement data.