Features: Make from thickened PP materials for stability and durability, providing a comfortable seating experience. Ergonomically shape to fit the curves of the buttocks, offering a comfortable and supportive seating surfaces. For quick and hygienic cleaning, the toilet Seats is equipped with the Quickly Release function. Designs for a easily Installation, this toilet Seats can be installed quickly without professional help. Features a waterproof and antifouling surfaces, cleaning easily and maintaining hygiene. Specifications: Materials: PP Styles: Large thickened/Large V-shape thickened Large lid size: about 36x (45-48) cm/14.17x (17.72-18.9)in Large Seats size: about 22x29.50cm/8.66x11.61inch Large V-shape lid size: about 38.50x (45-47) cm/15.16x (17.72-18.5)in Large V-shape Seats size: about 22x31cm/8.66x12.2inch Package Includes: 1Pc Toilet Lid note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to difference between different monitors, the picture may not reflect the actual color.