Relief Expert is specialized in cold and hot wraps products which show unique design. Relief Expert is aimed at pain relief from body, including head, shoulder, back, knee and ankle. It mainly focuses on muscle pain and fatigue soothing. Benefit: This heat pads for back pain relief Around all-waist design provides full coverage and hot therapy to those suffering from waist pain for instant pain relief. Long straps make microwavable heated pads for back pain relief easy to be immobilizationed and hands-free.Extra storage bag provides Independent space for the the heat wrap for back to be heated. Included extension sticky straps apply heavy hot therapy when you walk, drive or work.The fillings distributes evenly along the unique V-shaped arrays, delivers heat instantly Directions:Hot Compress- Before heating heat pack for back in the microwava, make sure heat pack for back pain relief is dry or the wrap will be defective. Place heat pad for back pain relief on a clean dry plate and heat in microwave for 1-2 min, then get the back heat pad for soothing warmth for 15-20 min.Add increments of 30 seconds if you want to get warmer temperature. Cold Compress- Place heat pads for back pain relief in the plastic bag and chill heat wraps for back pain in freezer for 4 hours Product