Hot and cold therapy are the two most common types of non-addictive pain relief therapies for muscle and joints. Whether chilled or heated, this Pearl Technology maintains the hot or cold temperature for the medically recommended 20 minutes while perfectly conforming to your body shape to deliver direct relief. Simply heat in the microwave or freeze in the freezer to use. Treat your knees and keep moving! Strenuous workouts, household chores and that touch of arthritis put tremendous stress on your knees. Don’t let discomfort and swelling hobble you. TheraPearl’s ingenious Knee Wrap relieves both so you keep moving! The large opening sits over your kneecap to preserve a wide range of motion, while the Pearl Technology sends relief directly to the pain. The flexible Velcro strap keeps the wrap comfortably in place, even during a workout. Chill it in the fridge or freezer for analgesic cold, or pop it in the microwave for penetrating heat. The pack holds its therapeutic temperature for a full 20 minutes so you get fast, effective relief. It’s perfect after exercise, lugging laundry up steps, or a day kneeling in the garden.