High quality: zinc alloy hinges, anti-rust, antibacterial, zinc alloy hinge, silver plated surface, for MDF toilet seat, wooden toilet seat, resin toilet seat. Corrosion resistance: The small screws are made of corrosion-resistant stainless steel, ideal for humid or low airflow environments. Washers and Nuts: Washers and Nuts: Rubber, Rubber washers are a large and durable rubber fastening nut with limited space. Easy Installation: This set comes with all fittings and should install easily, all you need is a screwdriver. Zinc alloy toilet cover can be used for a long time, no oxidation, corrosion, easy to clean. zinc alloy, anti-rust, antibacterial, electroplated surface is not easy to fall off. Perfect for use in bathroom, hotel, public places, etc. Material: zinc alloy Silver color Delivery list: 1 * set of toilet lid hinges