Medline's Alternating Pressure Pad reduces pressure using air pockets that alternately fill and empty. Each pad is made of anti-slip embossed vinyl and comes with 6 ft. of pre-attached tubing. Pillow-style pad with 2 Ã‚Â½" profile is made of 12-guage vinyl, and is 35"x90" deflated, 31"x68" inflated. Also features 19" end flaps that tuck under mattress. Includes repair kit. Six-month warranty. Pad with a pump can be purchased as a set - MSCAIRONE.