Roho Airlite Cushion w Heavy Duty Cover 18 x 16 Toe Immobilizer Exercise Rails Three 6 x 28 stretchable sides so you Exercise Rails Three 6 x 28 stainless steel rail sections each with 5 anchor points 5 Max Base Width: 37 Min Base 26 Improves individual's transferability by lowering the front and middle of the cushion Û inches while keeping its strong positioning capablity by deepening the leg troughs * The lower height also contributes to a greater feeling of security in the chair particularly if the cushion is being supplied as a replacement cushion * The non adjustable ROHO AIR FLOATATION air insert built into the cushion under the ischials has been enhanced to provide greater cell to cell air transfer improving the immersion capability of the cushion * The overall foam density of the cushion has been reduced by 25% allowing the cushion to conform better to the individual's physiology * 24 month warranty * No adjustment of the air cells is required * The cover is 100% PVC free and comes with a full depth zipper which helps to provide enhanced fluid resistance * Weight limit: 300 lbs *