Sky Babe Orthopedic Memory Foam Seat Cushion/seat Pad/chair Pad/ Chair Cushion/ Office Cushion/car Cushion (Coffee) size is:17.7'' x 13.4'' x 2.8'')/Entering the shop search more styles for you to choose Ultra Thickness Brings Extra Comfort & Relief - An ultra thick memory foam contour insert with latest ergonomic shape and appropriate firmness provides a great comfort and support for people often sit for long hours, long rides/flight/desk work, and it can be an good extra cushion or padding for uncomfortable office chair, hard surface dinning chair, car seat etc. Assists in the treatment of sciatica, pressure ulcers, injured tailbone and more Zippered, machine-washable velour cover for easy cleaning. Built-in handle for easy transport Superior comfort for chairs, car seats, planes, and wheelchairs