Mueller wonder wrap is an all purpose wrap that offers firm support. Durable and reusable, this 3 inch wrap helps reduce muscle strain while maintaining its elasticity For long term use. The smaller wonder wrap stretches from 70cm to 99cm (36 inches) making it ideal as an all purpose support for the wrist, Ankle, elbow or knee, The larger wonder wrap starts at 1.4M upstretched and can get To nearly 2M, Suitable for the thigh, back and shoulder. This product is also suitable to hold hot and cold packs firmly in place. Mueller wonder wraps have One sewn end and the other has Velcro hooks that secure to anywhere on the wrap itself and they are made from elasticated nylon which allows the Mueller wonder wrap to be washed and reused.