Eggcrate Wheelchair Cushion 16inx18inx3in (Approx size) Doctors Physicians Scales Intelect© Transport Ultrasound * Fully 48750 Intelect© Transport Ultrasound * Fully functional 1 and 3 Padded cushion is specially designed for the left right or bilateral amputee *Black leatherette zippered cover *Leg extensions are approximately 1 2 of the seat width x 9 long *Overall length with Leg Extension is 25 *Overall thickness is 1 1 2 for the Narrow Adult Adult and X Wide models and have a 5 8 plywood base *The XX Wide (22 and larger) have an overall thickness of 2 1 2 and have a 3 4 plywood base *Meets CA 117 code *X Wide *20w x 25d *Bilateral Extension Without cover * Seat Only (without Back) * Good for even distribution of weight * High density long lasting foam allows better circulation of air * Seat: 16X18X3 (approximate size)