SIT COMFORTABLY WITHOUT PAIN If you feel stiff and sore after sitting, or experience tailbone, Coccyx or back pain, 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 cutout provides support, comfort and helps to straighten and correct your posture, with maximum support along your lower back's natural arches. Protects you from sitting incorrectly in harmful positions. PERFECT FOR ALL UNCOMFORTABLE SITTING CHAIRS OFFICE TRAVELING... Easily take the portable cushion with you everywhere - office chair, wheelchair, long car rides, while watching TV or using the computer, and everywhere you want to sit well without pain. HIGH-QUALITY MEMORY FOAM CUSHION Machine washable zippered velour for EASY CLEANING. Made of high-quality, 100% memory foam. Your cushion will feel softer in warm and firmer in cold weather. Color: black Material: Polyester Size: 45 x 36 x 7cm 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 to differ slightly from the real thing. The allowed measurement error is +/- 1-3cm.