Thank you for viewing! This is the IKSTAR Fourth Generation Memory Foam Chair Cushion (Black). A gift bag is also included. This low-rebound cushion is recommended for those who sit for long periods, reducing the burden on your lower back and buttocks. High-quality memory foam is used for the filling, gently distributing pressure from your weight. The three-dimensional structure that envelops your buttocks supports comfortable seating even for extended periods. The front end has a W-shaped design to relieve pressure on the thighs, and the rear end has a U-shaped structure designed to avoid the tailbone area. This reduces the burden on the tailbone and makes it easier to maintain proper posture. This structure also enhances breathability, making it less prone to stuffiness. The cover uses breathable mesh material and has a zipper for easy removal and washing. The bottom has a non-slip treatment, so it won't slip on the chair, allowing for safe use. It can be used in various settings, such as office chairs, dining chairs, and car seats. 【Size】Approx. 38 x 45cm 【Thickness】Approx. 4-11cm 【Material】Filling: Memory Foam Polyurethane / Cover: Polyester (Surface Mesh), PVC (Non-slip Back) 【Color】Black It has been opened but not used and is in a clean condition. Please refrain from purchasing if you are concerned about minor details due to home storage. If you have any questions, please feel free to comment.