Material: Plush, diameter: approx. 30 cm, polyester, environmentally friendly, flexible, warm in winter. The thick, high-quality, and elastic material fits well on oval and round toilets. Easy to install on the toilet, does not slip easily, firmly connected, easy to disassemble and clean. Package contents: You will receive 4 toilet seats. Installation: Place the lid with the ring towards the bottom of the toilet seat, pull the lid through the opening, and then place it on the toilet seat. If you don't know how to install it, please follow the 3 pictures to install the toilet seats. Washable and reusable: Washable, reusable, machine washable. Caution: Remove the plastic tube before washing the toilet seat.