Similar to the Dual Comfort 6x10 pack, the 6x20 pack features a greater length for ease of use on larger joints like the lower back, shoulders, and neck. For use on sports injuries and other afflictions of the body, the 6x20 pack has a unique strapping system to ensure a comfortable, secure fit on the injured are. As a cold therapy wrap, the 6x20 pack can be applied during sports injury recovery, and as a hot therapy wrap can relieve pain from chronic inflammation of the joints. Though ice will suffice during emergencies, the non-toxic gel of the Dual Comfort 6x20 pack will conform to the body part it is being applied to, making it superior to the less flexible qualities than ice and the ideal cold therapy wrap for reducing swelling. Equipped with two surfaces a plush, slow-release surface and a more rapid-release surface the 6x20 pack is a safe, efficient tool for restricting blood flow to the injured area and promoting healing. As a hot therapy wrap, the 6x20 pack is ready for use after being heated in the microwave for under a minute. Begin with heating the wrap for thirty seconds on high and continue to heat it in ten-second intervals until the desired heat is reached. The application of the Dual Comfort 6x20 pack as a heated wrap increases blood flow to the afflicted area, thus increasing oxygen. It is best used for reducing inflammation in sore joints, tight muscles, and other conditions gained by lingering sports injuries. With two therapy processes and two ways to regulate the application of these technologies, the Core Dual Comfort 6x20 therapy pack is a versatile solution for injury recovery and pain relief. It is the last solution you will need. Heating Instructions Based on initial pack temperature below 75F (24C). Knead after each heating. Microwave ovens vary; use care when heating and removing pack from microwave. Overheating pack may cause pack to rupture and/or leak. Carefully check the pack with the palm of your hand before applying. Discard pack if punctured or broken. Heat 30 seconds on high heat, knead, and then continue heating at 10 second intervals until desired temperature is reached. Knead after each heating. Dynamic duo: heat and cold in one great package.