Description: [High Density Memory Foam] Made from a high-quality memory foam, offer comfort and to help relieve back pain, tailbone pain, and sciatica. Great [Lightweight and Portable] Perfect choice for office chairs, wheelchairs, airplanes. Use it as a car seat cushion, desk chair cushion, or a gaming chair pillow. Also great for car, short and long trips or even for simple trips home to the office. [Help Alleviate Back & Hip Pain] Ergonomical designed to help take pressure off of users lower back or tailbone and offers orthopedic tailbone pain relief while sitting. This cushion promotes healthy posture and proper spinal alignment. [Orthopedic Seat Cushion] U shaped ergonomical design recommended by orthopedic surgeons and doctors across the globe for treatment of chronic or acute pain by alleviating pressure in strategic areas, removes pressure from the coccyx to ensure the tailbone hovers over the surface of the seat, thereby alleviating any discomfort caused by sitting for extended periods. [Includes Washable Cover]Features a zippered, removable cover that is completely machine washable to make cleaning easier. Specification: Material: Memory Foam Size: 45x35x7cm/17.72x13.78x2.76 inch Package Includes: 1 Piece Seat Cushion Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 1-3mm differences due to manual measurement.