Note: Attention! Our temperature-sensitive memory foam is created through specific formulations and processes. In low-temperature environments, the cushioning will feel firmer, but it will soften and conform to your body once it reacts to your warmth Superior Comfort: Crafted with high-quality memory foam,cushion seat provides exceptional comfort for extended periods of sitting, relieving pressure points and promoting relaxation Ergonomic Design: The beveled edge design promotes proper posture and reduces strain on your back, hips, and tailbone, making it ideal for office work, driving, or travel Versatile Use: Large size 16"*18" chair cushion is perfect for a variety of seating options, including office chairs, car seats, wheelchairs, and even airplane seats, providing comfort wherever you go Easy to Clean: Seat cushion come with washable cover and non-slip bottom, ensuring long-lasting comfort and hygiene SweetSlubr Seat Cushion for Tailbone Pain Relief and Comfortable Memory Foam Chair Cushion Added Support for Office Chairs, Car Seat, Travel Seat, and Bleacher.With Black Non-slip Washable cover