Hot/Cold Pain Relief Buckwheat Knee WrapHeat a wrap in the microwave for therapeutic warmth to help relax joint and surrounding muscles or cool it in the freezer for soothing cold therapy that relieves inflammation and pain caused by injury or arthritis. The adjustable hook and loop fastener allows for easy on and off and a comfortable, custom fit. Features: Helps relieve pain, inflammation, and general discomfort in the knee. Microwave heat provides theraputic soothing to help relax joint