Quality material: This toilet lid fixing kit is made of plastic, rubber and solid 304 stainless steel. Exceptional sturdiness and stability to hold your toilet lid. Durable, rust and corrosion resistant, better than most plastic fasteners. Unique Design: When you tighten the screw, the washer is pushed into the hole, you must be careful not to overtighten the screw and push through the washer. The screw has solid brass threads inside, which is not easy to rust. Easy to use: Easy and quick to install, just insert the rubber nut into the hole, then insert the screw through the washer and the plastic plate into the rubber expansion nut, tighten the screw, align the pin with the base stainless steel, insert it. Into the toilet seat installation holeIdeal choice: This toilet lid fixing kit is ideal for replacing broken or old toilet lid hinges (the detailed size of each toilet lid nut is shown in the picture, please measure before purchasing to ensure your toilet lid can be used normally).Wide Application: These toilet lid screw fittings are universal and fit most standard toilet seats with top hinges. the toilet seat installation kit is ideal for replacing damaged or old toilet seat hinges. Note: The data is all measured manually, please allow 1-3cm error, due to the difference in light and display, there will be a certain color difference, the actual object received shall prevail.