Sacral Wedge Seat Cushion, FIRM, LARGE, Orthopedic Memory Foam Drivers Seat Pillow, NOT for small cars w/bucket seats ENJOY SITTING LONGER WITH LESS PAIN; sloped driver seat cushion measures 2.75" at rear to 1.5" at front, helps relax the back for sufferers of lumbar, tailbone, hip, sacrum & coccyx problems, sciatica, prostate and hemorrhoids WORKS EVERYWHERE; great for short people as riser or booster seat, in hard chairs at home or office desk chair, as pads on bleachers & patio chairs; in wheelchair, during pregnancy, or as a comfortable chair for gaming MEMORY FOAM CONFORMS TO YOUR BODY; cushion is FIRM but gently supports to reduce pressure on sensitive areas; protects from injury; promotes healthy posture and spinal alignment MACHINE WASHABLE COVER; durable, athletic grade material stands up to toughest daily use; will not tear; grips car seat better; breathes LIFETIME GUARANTEE; we are so confident in all our products, that in the unlikely event the cushion ever fails to perform, the cover wears out, or the zipper breaks, we will replace your ERGO-Pedic Comfort Cushion absolutely FREE!!!