McKesson Molded Foam Seat Cushion, 16 x 16 x 3 in, 1 Case of 4 Connector Tubing 3oz (37g) including batteries * Color:Yellow 3oz (37g) including batteries * 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 Raised front ridge to promote proper positioning and control sliding treatment and management of pressure sores with enhanced pressure redistribution