Extra Thick Seat Cushion?This seat cushion measures 17" x 18" x 6" and solves the problem of outdated seat condition and lack of working height. Features: ?ENHANCED VISION?When driving, the height is too low to see the vision. Adult car booster seat/short car seat cushion can help you to open up your vision and see the road clearly.HOMBYS car seat driver seat cushion not only provides exceptional comfort, but also improves your visibility on the road. ?Extra Thick Seat Cushion?This seat cushion measures 17" x 18" x 6" and solves the problem of outdated seat condition and lack of working height. It is designed for short stature and people who need a height cushion for comfort. ?2 Layer Filling?Memory Foam + Sponge : The upper layer of the thick cushion is filled with 3 inch memory foam, and the lower layer is filled with 3 inch sponge, which ensures better support while playing a good comfortable role. The 6 inch Thick cushion it perfect for use as a booster seat for adult, which reduce the strain on your lower back, hips, and legs,ensuring that you stay comfortable even during long hours on the work. ?ERGONOMIC DESIGN OF OFFICE CHAIR SEAT CUSHION? The high quality office chair cushion reduces the pressure on your lower back, hips and legs, ensuring that you stay comfortable even during long working hours. Adult booster chair seat cushion center part groove design, not easy to slide your hips; provide unparalleled comfort and safety. ?PORTABLE HANDLE AND LOCKING BUCKLE? The seat cushion has a built-in handle for easy transportation and an adjustable locking buckle to secure the seat cushion in place. It can be used as an office pillow, rocking chair cushion, patio chair cushion, outdoor chair cushion, restaurant chair cushion, lawn chair cushion, camping chair cushion, kitchen chair cushion, and even as a chaise lounge cushion, garden cushion, and floor cushion. Package Includes: 1 x Office chair cushion Listing and template services provided by inkFrog