High density polyethylene shell, supported by a stainless steel outer rail, permanently attached with stainless steel semi-tubular rivets. Molded runners, fully exposed outer rail, non-absorbent foam pad secured to stretcher and four patient restraint straps. Ideal for unusually rough terrain rescue conditions, and heavy or large patients. Two bottom cross struts are recessed into the plastic and provide side to side rigidity. The plastic bed fits on the bottom rail, leaving the top rail free for carrying, or rigging systems. The rectangular shape accepts full spine boards. Passes 1200lb load test. Weight: 35 lbs. Color: Yellow.