Cold Therapy Strap for muscle inflammation, fatigue, and injury recovery. Pain and injuries are common for athletes. When the excitement of a win makes us give our best, it leaves a trail of a few aches, sore muscles & ligaments, and a lot of sweat. SandPuppy Coldstrap, when applied within 24 hours, soothes these sore muscles and ligaments to give immediate relief. It is uniquely designed to strap around any part of your body that needs healing. The feel of a hug and cold sensation will relax sore muscles quickly. Directions for use: Before using the ColdStrap, store the inner gel pouch in the freezer section of your refrigerator for at least 2 hours. Insert the pouch in the slit of the case. Wrap coolpad on the affected area and strap it firmly in place with the velcro extender.