COMPLETE COMFORT We shaped our seat cushion for car seat driving using a W shape, an ergonomically considered design to promote correct driving posture and relieve the pains of sitting over long periodsMEMORY FOAM CAR SEAT CUSHION The high density memory foam encourages support to the tail area and can relieve the pain of sciatica and in the lower back areaADDS HEIGHT BY 2.5 INCHES Allows for increased vision of the front of your car and the road thanks to the car cushions for driving providing an additional 2.5 in height. Non-slip base keeps the car cushion firmly in placeWIDE APPLICATION Our car seat cushions are easily applied to other chairs thanks to the easy installation process. You can use it in your truck, office chair, wheelchairs, airplanes, and more!