Self Heating Knee Pads Brace Support Thermal Therapy Arthritis Protect Relieve Joint Pain Blood CirculationSpecification:Condition: 100% Brand NewProduct Name: Self Heating Knee PadsMaterial: PolyesterColor: Black / Gray / SkinSize: M / L / XLFunctions: protect the knee, prevent arthritis and relieve joint painLeg Thigh circumference:Size M: 28-34cmSize L: 34-42cmSize XL: 42-48cmFeatures:-Pad protectors can protect knees, prevent arthritis and relieve joint pain.-It can improve blood circulation and help relax muscles and reduce fatigue.-The pad protectors is made of highly elastic fabric, breathable, stretchable, soft and comfortable.-Store heat to keep warm, body movement will release energy and make your knees feel hot.-Very suitable for people who need to protect their knees.Package Includes:2 x Self Heating Knee PadsNote:1.There are no instructions included in this kit.If you want to know how to use or install it,please contact us by Email.We will provide help as much as possible.2.The color of the actual items may slightly different from the listing images due to different computer screen, thanks for your understanding.