Easy to use, nice touch, easy repositioning. Requests to be rinsed with warm water fairly quickly, otherwise no longer sticky. In everyday use, need to be changed after about one month (lot 8 therefore lasts two months in this case). I use it for abs with successive 4programmes the same location to avoid loosen them too often. Do not replace real gym sessions, but prepares the muscles and maintains. Amazon is cheaper than the device manufacturer.