This cushion features a hole design for good breathability and is perfect for posture correction. - Color: Black - Design: Hole design - Purpose: Posture correction cushion - Material: Cushion material ⭐️Used once and stored for a long time. ⭐️Current products are sold for 6700 yen. From the website: The high-performance cushion "BackJoy Relief" is here to keep your pelvis and spine in good condition! ・The base uses synthetic polymer and low-shrinkage cushioning for a comfortable softness. ・The surface uses a breathable mesh material. ・Unlike simple, regular cushions, APS technology lifts the pelvis and naturally supports good posture. ・When sitting, it supports the pelvis as if the spine is floating from the chair, absorbing shock to the spine. ・Improves the balance of abdominal and back muscles, and reduces the burden on the lower back and back by allowing the spine to maintain its normal curve. ・Makes it possible to maintain a comfortable posture even when sitting for long periods. ・Highly resistant to high temperatures, so it can also be used in car seats. Lightweight and easy to carry. Thank you for viewing. Lower back pain prevention, sudden lower back pain, posture, lumbar region