Memory Foam Seat Cushion?Comfort Seat Cushion for Office Chair?Coccyx Cushion for Tailbone Pain Sciatica Pillow Chair Car Pillow for Long Sitting for Pressure Relief Back Pain Relief

Specification: Item Mame: 100% Memory Foam Seat Cushion Material: 100% Memory Foam Color: Black Size: about 45*37*7cm/17.7*14.5*2.8inch Package Include: 1* Seat Cushion; U-shaped ergonomic design helps you keep correct posture. ?Keep the back straight so that the spine is not under pressure  ?Promote blood circulation ?Relax the back and spine  ?Help focus on work Widely Use Our coccyx cushion is suitable for office chair, car seat, wheelchair,recliner, gaming chair, any home chair or seat on a bus, airplane or train. Recommend to drivers, teachers, students, people need wheelchair, pregnant women, office workers etc.