Power Wrist Exercise Gym Hand Grip Wrist Force Exerciser Comprehensive Fitness Exercise(Black)The product is shipped based on the color or size of the main image of the product page.Power Wrist Exercise Gym Hand Grip Wrist Force Exerciser Comprehensive Fitness Exercise Muscle Relex Apparatus Fitness Equipment|Power Wrists(Black)product descriptionWrist machines can provide effective strength training for many other sports such as golf, table tennis, basketball, tennis, etc.Instructions for use1. Pass the safety belt in the middle with your hand, grab the plastic handle, and move up and down evenly2. Grasp the plastic handle with one hand and the semi-circular foam sleeve with the other, and move up and down at a constant speedPrecautions1. Please exercise at a constant speed and do not use excessive force to prevent the handle from breaking and the spring popping out and hurting people.2. Try to choose a place with few people when exercising to avoid accidents3. Please read the product manual carefully or follow the doctors use before use, our company is not responsible for the damage caused by improper use