Continuous Passive Motion (CPM) Devices - Kinetec Reusable PU Knee CPM Pad Kit : Especially designed to provide optimum comfort and hygiene, the wipe clean Kinetec comfort plastic supports fit Kinetec knee CPM's which do not have frame clips in place. The comfort plastic supports have straps that can be adjusted to suit a range of leg sizes. This complete set is for use with all knee CPM's except Kinetec Performa and Kinetec Prima XL.