Heating Knee Pad Knee Brace Support Pads Thermal Heat Therapy Wrap Hot Compress Knee Massager for Cramps Arthritis Pain Relief Functions: *Relieve knee pains associated with arthritis, bursitis, strains, sprains, ACL PCL MCL meniscus tear *Aid in knee injury or surgery recovery *Leg or arm muscle fatigue soreness, cramps relief *Knee warm keeping;Other situations that need hot compress *The heating pad has a built-in mesh bag (13.5*18cm), if need be, put a ice bag in, it can be used for cold compress. Warm prompt: Washing Method: Wash it gently by hand in water, don't wash it by machine. (Washable but not waterproof) Package includes: 1 x Knee Heating Pad 1 x USB Cable (2M)