1. 360° Rotating Seat Mechanism: This seat cushion features a smooth rotating base that easily rotates in both directions. Easily get in and out of the vehicle without twisting your body, especially suitable for people with limited mobility. 2. Solid and nonslip base: The textured rubber bottom of this car seat cushion prevents shifting during use while allowing the cushion to rotate. It can remain stable even on car seats, wheelchairs and office chairs during movement. 3. Soft sponge: density sponge evenly distributes weight, reducing pressure on the hips and back. It can maintain its shape even after longterm use, providing balanced support for longterm sitting and improving your comfort. 4. Suitable for all seasons: The lightweight fabric cover can absorb moisture and promote air circulation. And the base is removable for easy cleaning, suitable for use in various environments throughout the year.