These high quality rubber and stainless steel toilet lid accessories provide excellent grip and a tight fit. The threaded section allows for easy installation without the need for a bolt on the other end. The rubber bungs expand and tighten when the screws are tightened, ensuring a secure hold. With a durable construction, these accessories are built to last. Package includes 4 rubber washers, 4 metal gaskets, 4 plastic gaskets, and 4 screws. Enhance your bathroom experience with these reliable and versatile toilet lid accessories. Features 1. The rubber grommets in the kit have a threaded section so you can just push them into the holes in the top of the toilet pan and when you tighten the screw it expands and tightens itself into the hole, without the need of a bolt on the other end of the screw. 2. You don't need to tight screw from bottom with these toilet seat hinges screws. These rubber toilet seat bolts provide great friction against the ceramic bowl holes therefore excellent grip compared to plastic 3. Toilet seat screws and fixtures are made of high quality rubber and stainless steel, sturdy and durable. 4. The rubber bungs slide into the holes perfectly and when you tighten the bolts they squash up in the holes to make a good tight fit. 5. Quality Guarantee. We have faith in our product and always back it up with trustful customer service, please reach out to us if you have any questions or problems about our products. Specification Material: Rubber+Metal Color: Black Package Includes: 4 x Rubber Washer 4 x Metal Gasket 4 x Plastic Gasket 4 x Screw