High-quality materials: This toilet seat fixing kit is made of plastic, rubber, and stainless steel. It provides excellent strength and stability for fixing your toilet seat. Durable and rust-proof. and corrosion, better than most plastic fasteners. Unique design: Plastic washers have better rust-proof performance than metal washers. When tightening the screw, the washer will be pushed into the hole, so be careful not to overtighten the screw or push it beyond the washer. The screws have solid brass threads inside, which are not easy to rust. Easy to use: Installation is quick and easy, just insert the rubber nut holes, then insert the screws through the washers and plastic plate into the rubber expansion nuts, tighten the screws, align the pins with the stainless steel base, and insert. Toilet Seat Installation Hole SelectionIdeal: This toilet lid fixing kit is perfect for replacing broken or old toilet lid hinges (the detailed size of each toilet lid nut is shown in the picture,