Product details information: 1. Outside layer: Velvet or imported OK cloth 2. Inlay: 6+6pcs magnets 3. Inside layer: Tourmaline far infrared heating functional layer 4. Black color, two sizes choices, pp bag packing 5. OEM, ODM provide Product features and functions: 1.,New shape design, meet ergonomically design 2.,Tourmaline far infrared heat&Magnetic therapy 3.,Knee joint healthcare, pain relief, keep knee warm 4.,Activities more flexible, not restricted 5.,Velcro design, not easy to fall off 6.,Small gift choice, very popular Applicable For 1.People with Hyperosteogeny 2.Arthritis 3.Pain on Carf Muscle 4.Pain on Thigh Muscle Note: 1. If the body part appears redness, fever, hyperthermia, it is a normal phenomenon, With time, heat intense will become weak and the heating time will get longer. 2.Pregnant women, kids and those who suffer hypertension, heart troubles, weak wisdom, disability to self manage the life. 3.Do not use the product in sensitive parts such as eyes. pp bag or zipper bag per pair