Cupping is a Chinese medicine technique that has been used for centuries for many different conditions. This product is a kind of device used for cupping and scraping in clinical treatment and healthcare. Only need a 5-15 minutes cupping,you can relieve pain and feel relax. How to Use: 1. Before use, first lift the upper end of the tank to ensure that the gas is unblocked. 2. After the vacuum pumping nozzle is placed on the upper end of the tank, pull the rod vertically for about 4 times to reach the appropriate negative pressure. 3. Use the end of the can, gently lift the upper end of the can, and the can can be removed. 4, less parts of the human muscles or hairy feet, joints can be used to make a doughnut under the cans to achieve a sealing effect.