Posture correction cushion perfect for desk work. - Total of 70,000 units sold! Posture correction cushion, posture correction, cushion, chair cushion, posture improvement, lower back pain relief, lower back pain cushion, desk work cushion, children's posture, seat, popular, recommended, low-rebound, black, office chair, stylish - - Uses: Ideal for desk work and long periods of sitting - Design: Ergonomic design Thank you for viewing. I purchased it for 4200 yen.