This cushion is designed with ergonomics in mind, providing comfort even during long periods of sitting. - Model Name: Memory Foam Cushion - Design Features: W-shaped and U-shaped design - Size: 18.0 inches wide, 2.2 inches high - Uses: Office chairs, home, and car - Purchase History: Over 500 units purchased in the past month Thank you for viewing. I am selling only new items and items in excellent condition. This description is generated by AI. I have included many photos, so please make your judgment based on them. I have noted any noticeable scratches in the photos before listing, but please understand that the item has been handled by a person once. If you have any concerns, please contact me before leaving a review. [Opened for photography, but it is unused] Therefore, I have not checked the operation or conducted a detailed inspection. #manaka mama