I purchased and used this to alleviate lower back and back pain while driving. It's a pressure-redistributing gel recognized in the medical and welfare fields, making long drives comfortable. Thanks to this, my back pain improved significantly, so I'm selling it. It has been used, so there are some wrinkles, but I don't think there are any noticeable stains. It's divided into three sections for the back, lower back, and seat, and each section can be micro-adjusted with Velcro. It also has adjusters to secure it to the headrest. Because it can be divided into three parts, it seems like it could also be used in wheelchairs, with just the backrest or just the seat. Due to shipping costs, it will be shipped disassembled in three parts without the box. If you need the box in the photos, please let me know in advance. I remember it cost over 30,000 yen when I bought it at the department store. A posture support cushion with an integrated backrest and seat design, adjustable with straps. - Model Name: Hug Drive Slim Cushion - Color: Black - Design Features: Integrated backrest and seat structure - Adjustment Features: Adjustable with straps - Intended Use: Posture support