1..PLASTIC MATERIAL: Our toilet seat screws are made of plastic material, strong and durable, with good resistance to high and low temperatures. 2.RUBBER RING AND PLASTIC PAD: Rubber ring made of new rubber material inside the screw, 4mm thick rubber design. The cushion is made of plastic and sealed properly after installation. 3.EASY TO INSTALL: Toilet seat bolts with a straight screwdriver, nut smooth without stabbing hands. With a single word screwdriver, it is much easier to install. 4.UNIVERSALITY: Suitable for most toilets. Toilet seat hinges provide an easy alternative to replacing an entire seat. 5.WHAT YOU GET: 4 Pack toilet seat screws