Safety material: Made of medical silicone, no odor, no BPA, helps remove all types of fine lines, sleep wrinkles, and even annoying scars Innovative design: Innovative heart-shaped design makes it easier to use. This low neck sleeve is suitable for the chest and is easy to eliminate wrinkles Durable: Beautiful self-adhesive, reusable at least 100 times, excellent material gives you a comfortable wearing feeling Washable: Wash the chest pad in time after use to extend the use time. Make sure your skin is clean,dry and free from oils and creams before each application and keep the chest clean during use to maximize its effect Note: It is recommended to initially use the skin for 2 hours to adapt the process. Some sensitive skin will turn red during use. This is normal. It will recover naturally after 2-3 hours of use. You can continue to use the chest pad after recovery