product Joint Repair Roller Ball is a body care roller ball specially designed to relieve pain in knees, joints, shoulders, neck and lumbar spine. Made with advanced technology and materials, the ball can provide comfortable massage and therapeutic effects to help users relieve joint pain and muscle discomfort. Features: 1. Efficiently relieve pain: The joint repair ball adopts rolling massage method, which can directly act on the painful parts to help relieve the soreness of knees, joints, shoulders, neck and lumbar spine. 2. Comfortable use experience: The ball adopts ergonomic design, feels comfortable in the hand, and is easy to hold and operate. Whether at home, in the office or on the go, you can use it anytime for a comfortable massage experience. 3. Multifunctional design: Joint repair roller balls are not only suitable for relieving joint pain, but can also be used to relieve muscle tension and fatigue. It stimulates acupuncture points, promotes blood circulation, and helps improve physical condition. 4. Easy to carry: The ball is small, lightweight and easy to carry. It can be carried in your handbag, backpack or pocket for massage and treatment anytime and anywhere. Instructions: 1. Gently roll the joint repair ball on the painful area and massage with moderate force to relieve discomfort in joints and muscles. 2. The scrolling speed and pressing force can be adjusted according to personal needs. 3. Please be careful to avoid excessive massage when using it to avoid discomfort. Precautions: 1. If you have severe joint disease or other physical discomfort, please consult your doctor before use. 2. Do not use on injured or infected areas. 3. Do not come into contact with open wounds or broken skin. 4. Please do not overuse to avoid skin irritation or damage. Joint Repair Balls are ideal for relieving soreness in your knees, joints, shoulders, neck and lumbar spine. It provides you with a convenient, comfortable and efficient body care experience to help you stay healthy and comfortable in your daily life.