[ High-Quality Memory Foam Seat Cushion ] - This seat cushion is made of high-density, high-quality memory foam that is both soft and durable. The high density provides excellent flexibility, ensuring that support and elasticity remain intact even after multiple uses..[ Tail Bone Pain Relief Cushion] - Ergonomic "U" Shaped Cutout alleviates pressure on the sciatica nerve reducing back, leg, butt, and coccyx/tailbone pain caused by sitting uncomfortably for hours. Whether you use it as a seat cushion for car or chair cushion for desk chair, you will notice the difference..[ Skin-friendly fabric + Anti-slip bottom design ] - Our office chair cushion bottom utilizes glue-spraying technology and has undergone multiple tests for anti-slip properties, ensuring it stays securely in place and does not easily slip off. The fabric is made of soft, and smooth surface that is not prone to wrinkles, making daily maintenance easier..[ Ergonomic Design for Improving Posture ] - Our chair cushions are designed ergonomically to support your lumbar region, alleviate pressure on your back, and provide optimal support and comfort while reducing pressure on the coccyx/tailbone and promoting y posture..[ Suitable for Various Scenes ] - Our desk chair cushion are suitable for most seats, such as office chairs, car seats, household chairs, airplane seats, or wheelchairs. It can relieve tailbone pain caused by long-term sitting at work or driving and will become an excellent companion for your daily life, office, and travel.