The purpose of Trideer stretching strap is to provide everyone with high-quality low-cost and sturdy physiotherapy stretching strap.After preliminary market research and product material research we selected the sturdy Polyester material in order to make it more sturdy and safe for everyone to use because too soft materials are easy to slip and cause secondary injuries.The design of our 10-ring is also based on extensive research.Suitable for most peoples height you can safely use it for stretching and physical therapyYou can use it to help you recover from physical therapy after knee replacement surgery to avoid the fatigue of going to and from the physical therapy room. It can also be used for daily muscle stretching and muscle relaxation or you can also use it to warm up before and after doing yoga. Help you complete yoga movements better.