The KIK-N-IT Callus Remover & Smoother is a set of water-resistant disks topped with a 60-grit working surface that adhere to the bottom of the tub or shower. You kick it with a swiping motion when you are sitting and your feet are wet. The water softens your feet before the exfoliation and the weight of the body does all the hard work. A great home care item for salon goers, each KIK-N-IT kit contain two disks and retails for $9.95.