Best Office Chair Cushions for Back Pain Relief & Sciatica, Coccyx Cushion Memory Foam by Perfect Posture Pillows (Red) INSTANTLY IMPROVE SITTING POSTURE - with the Perfect Posture Pillows memory foam sitting cushion, FIRM SUPPORT HELPS BACK PAIN & SCIATICA RELIEF - ergonomically contoured to reduce pressure on your coccyx / tail bone, and to improve the alignment of your spine, when working on a computer, or at a desk, U SHAPED SEAT CUSHION - helps with many issues caused by sitting for long periods of time, such as sciatica, pregnancy back pain, disc problems, tailbone injuries, hip pain, hemorrhoids and many others, VERSATILE PAIN RELIEF - provides comfort and convenience, and can be used when travelling, in the car, the office, at home, in the kitchen, when pregnant, at sporting events or any other time, LIFETIME WARRANTY - we trust our products, and we want you to know that we guarantee the quality of our products far beyond the normal 60 to 90 day warranty period.