SIT COMFORTABLY WITHOUT PAIN - If you feel stiff and sore after sitting, or experience tailbone, Coccyx, or back pain, you can enjoy relief with this comfortable, supportive seat cushion. Helps with most sitting pains due to sciatica, herniated disc, tailbone injuries, pregnancy back pain, hip pain, hemorrhoids, and other back problems. Supports the Tailbone and Relieves Pressure - Ergonomically designed seat cushion provides maximum support. IMPROVE AND PROTECT YOUR POSTURE - The U-shaped cut provides support, comfort, and helps to straighten and correct your posture, with the greatest support along your lower back's natural curves. Protects you from sitting incorrectly in harmful positions. GREAT FOR ALL UNCOMFORTABLE SITTING CHAIRS - OFFICE - TRAVEL... - Easily take the portable cushion with you everywhere - the office chair, wheelchair, long car rides, while watching TV or using the computer, and anywhere you want to sit comfortably without pain. HIGH QUALITY - MEMORY FOAM CUSHION - Machine washable velour cover with zipper for EASY CLEANING. Made from 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 7 cm Package contents: 1 x Seat cushions Only the above package content, 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.