Features: .1. Knee Sleeves Made of high quality material, which is safe and comfortable to wear .2. Can effectively help to relieve physical local fatigue and pain. .3. Adopting self-heating material which will help to improve the blood circulation, promote metabolism, clear the meridians, and enhance immunity. .4. The soft self-adhesive pad with high elasticity that is easy to take on and off. .5.Ideal for post-surgery rehabilitation or use in sports such as walking, hiking, golf, cycling and many more.