SIT COMFORTABLE WITHOUT PAIN - If you feel stiff and sore after sitting, or experience pain in your tailbone, Coccyx or back, enjoy relief with this comfortable, supportive seat cushion. Helps with most sitting pain due to sciatica, herniated discs, tailbone injuries, back pain during pregnancy, hip pain, hemorrhoids and other spinal problems. Supports the Tailbone and Relieves Pressure - Ergonomically designed seat cushion provides maximum support. IMPROVE AND PROTECT YOUR POSTURE - The U-shaped cutout provides support, comfort and helps straighten and correct your posture, with maximum support along the natural curves of the lower back. Protects you from sitting incorrectly in harmful positions. PERFECT FOR ALL UNCOMFORTABLE SEATS - OFFICE - TRAVEL... - Easily take the portable cushion with you everywhere - office chair, wheelchair, long car trips, when watching TV or using the computer, and anywhere you want to sit well without pain. HIGH QUALITY - MEMORY FOAM PILLOW - Machine washable velour cover with zipper for EASY CLEANING. Made of premium quality, 100% memory foam. Your cushion will feel softer in warm and firmer in cold temperatures. Color: black Material: Polyester Size: 45 x 36 x 7cm Package Contents: 1 x Seat Cushions Only the above package contents, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.