It's specially designed for knee, but can be used on calf, thigh, arm as well if need be. adjustable hook and loop straps closure,
2.it can fit a knee circumference not over 21 inch.
3.we have more temperature settings for choice, can meet people's various need of heat therapy. great for use when you're watching tv or reading book on sofa at home, when you'reworking in front of computer, or even during your travel.
*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