Car Wedge Cushion for Car Driver Office Chair Wheelchairs Coccyx Support Tailbone Memory Foam Car Cushion.RELIEVE ACHING BACK: Wedge cushion made of 100% premium memory foam features balanced softness and ergonomic coccyx cut-out design, which designed to relieve pressure on lower spine and reduce tailbone pain,but with some people it will not completely eliminate all symptoms.PROMOTE BETTER SITTING POSTURE : 20 INCHES at the width just fit the car , not like other with 18 inches at the width are too small for car . What's more, 3 INCHES high at the back , our cushion effectively raises your car height, thus providing the perfect amount of lumbar support.Widely : Our Memory Foam orthopedic wedge cushion provides comfort on Hard Surfaces, office chair, and wheelchairs.Design for car ,office , household and pregnancy. Some customers who often makes long commutes said this car wedge cushion made all the difference from ac after a drive to good.MORE PRACTICALITY DESIGN: Non-ip rubber bottom and adjustable strap to keeps cushion stable and secure. Will not aro whilst driving or require. 4D breathable mesh knitting material, has high-density, high- breathable, high elasticity. Removable cover is hand washable.Colour: grayMaterial: memory foamSize: 20x17x3 in/50X43X8 cmPackage Contents:1 x Car Wedge CushionNOTE: The car cushion will arrive folded but will flatten out with first .Only the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.