Thick Material: 90% acrylic + 10% polyester, very elastic and stretchy, suitable for toilet seats of different sizes and shapes, suitable for round square U-shaped toilets. Tight fit: the snap button design provides a firm fit on your toilet seat and has great elasticity, extra thick knitted toilet seat, say goodbye to the cold toilet seat in winter and give warmth to your family. Easy Installation: Designed to fit any toilet seat. Very easy to assemble and disassemble. Beautifully packaged, it's a thoughtful gift for all ages. Reusable: This super soft, super warm toilet seat cover is the perfect answer to cold winter blues. Antibacterial, washable, machine washable, portable, eco-friendly and reusable. Tip: The toilet lid should also be cleaned and replaced diligently, it is advisable to buy another one and to replace it at any time. Note: Do not use the toilet lid for dry cleaning and bleach.