LARGE SIZE FOR EXTRA COMFORT: Make yourself comfortable. The Klbs Large Seat Cushion is generously sized offering more width and more depth to provide padding and comfort for your seating surface. 19 inches wide x 17 inch depth and 3 inch height. Perfect Office chair seat cushion. Proper positioning makes this an ideal seat cushion for back pain and is a road trip must. Klbs provides superior chair cushions, office chair cushions, and an assortment of memory foam cushions. STYLISH AND PLUSH VELVET COVER: Soothing and plush feels oh so good. Add some style while adding comfort. Cover is machine washable and can be removed from the chair pillow core, providing the perfect seat cushion for tailbone pain relief. MEMORY FOAM COMFORT: Two Layers Provide Superior Comfort: Memory Foam Upper Layer. 1. The top layer of the foam cushion features plush memory foam for comfort and excellent pressure prevention. 2. Medical Grade Foam Core - a high density core layer supports the memory foam t