Developed by Skedco for use with the Sked Stretcher, the OSS II fits inside a rolled up stretcher. Skedco states “the OSS II is the safest, most effective vest-type extrication and immobilization device available today.” Includes a shoulder board that prevents compression of a patient in a Sked stretcher. Excellent immobilization of the head and cervical spine, and when used with the Sked, functions as a long spine board. Built to last under rugged conditions. Can be cleaned with common bleach solutions. X-ray translucent. Instructions included.