Features 1. Easy inflation: With a newly designed valve and flexible airflow system, this inflatable cushion can easily adjust its hardness to meet your needs. It only takes 10-15 seconds to inflate and provides immediate and clear support, allowing you to relax effortlessly. 2. Cleaning: Our inflatable seat cushions are plush and easy to clean. The surface of the seat cushion is plush and easy to clean; Simply wipe with a damp cloth, saving time and effort. Wipe with a damp cloth, saving time and effort. 3. Comfort: The size of this inflatable seat cushion is 45.5x39x11 centimeters, with an elliptical groove of 19.5x16 centimeters inside, providing continuous pressure relief in the middle, making it an ideal choice for most chairs. In addition, its lightweight design ensures the portability and comfort of outdoor activities. 4. Durability: Use our inflatable seat cushion to enhance your sitting experience. The seat cushion provides ergonomic support that fits snugly against the curves of your body. It is made of soft and durable materials that prevent punctures and leaks, ensuring long-term use. And leakage, ensure long-lasting use 5. Wide use: This inflatable seat cushion is an ideal choice for outdoor lifestyles, relieving tailbone pain and seamlessly connecting with car seats, trains, wheelchairs, and airplanes. Specification Material: Plush Product size: 45.5 * 39 * 11cm Inner diameter: 19.5 * 16cm Package Include: 1x seat cushion