Ergonomic wedge cushion for car, truck, and office chair use. Car wedge seat cushion designed for driver comfort, wheelchair support, and tailbone pain relief. Made with high-quality memory foam for balanced softness and support.RELIEVE BACK DISCOMFORT: This wedge seat cushion is constructed from 100% premium memory foam and features an ergonomic coccyx cut-out design to help reduce pressure on the lower spine and alleviate tailbone pain. Individual results may vary.PROMOTE BETTER SITTING POSTURE: Measuring 20 inches in width, this cushion fits most car seats comfortably. The 3-inch height at the back helps elevate your seating position, providing improved lumbar support during long drives or work hours.VERSATILE USE: Suitable for use on hard surfaces including office chairs, car seats, and wheelchairs. Ideal for daily driving, office work, home use, and pregnancy-related discomfort. Many users report improved comfort during extended sitting periods.PRACTICAL DESIGN: Features a non-slip rubber bottom and adjustable strap to keep the cushion securely in place. Covered in 4D breathable mesh fabric for enhanced airflow and comfort. Removable, hand-washable cover for easy maintenance.Color: Gray Material: Memory foam Size: 20 x 17 x 3 inches / 50 x 43 x 8 cm Package Includes: 1 x Car Wedge Seat Cushion Note: The cushion may arrive folded but will flatten upon first use. Product shown in images is only the seat cushion; other items are not included. Due to lighting and display differences, actual color may vary slightly. Measurement tolerance is +/- 1-3 cm.