Use for Moist Heat or Cold therapy treatments! Designed to surround the larger joints such as knees, ankles and elbows. Durable stretch fabric permits easy application and is idea for strenghtening and range of motion exercises. Helps prevent and treat pain caused by arthritis and tendonitis. Microwave for 1-2 minutes for 20-30 minutes of moist heat therapy. Freeze 2 hours or more for cold therapy. New improved beads ONLY absorb water molecules from the air so they will provide a "clean" moist heat, free from odor, mold and bacteria and fungi growth. Hand washable and reusable. Availability: Usually ships in 2-3 business days. MediBeads Joint Wrap 34530$20.00 Add HTA Heat Activated Pain Relief Spray for an all-natural, fast acting, deeply penetrating moist heat theapy treatment. Care & Instructions