This very simple design mounts to any standard OR rail with a single clamp which is integrated into the product. It is used to prevent patient slipping during Trendelenburg positioning. The Conductive 2" wide straps wrap around the patients thighs. The straps are protected by an extra wide foam cushioned pad.The airplane style buckle allows for precise adjustment to accommodate a wide range of standard size patients. A Bariatric version is available.(DSC-NTSB). Nissen Style restraint. Nissen strap.