12 Hours of Heat: Long-lasting relief for arthritis pain. All-day pain relief + reduced knee stiffness. Air-Activated: Just open pouch, starts to warm on its own. One time use. Ultra-thin, comfortable, discreet, odorless. Ease-of-use commendation by Arthritis Foundation. Made in USA.Price:
12 hours of heat for all day pain relief Helps stop knee or elbow arthritis flare-ups before they stop you Delivers heat that penetrates deep, warming the muscle right where it hurts to relax soother and unlock tight muscles for lasting pain relief