Premium MaterialThe toilet seat hinge clips are made of rubber and stainless steel, rubber is more resistant to dirt and wear, and not easy to break. Under the protection of rubber, the metal screws are less prone to rust and durable for long-term use. Easy to install The rubber grommets have a threaded section so you can simply install them. insert into the holes at the top of the toilet bowl. When you tighten the screw, it expands and pulls into the hole without the need to screw in the other end of the screw. Hinge PlatesThe hinge plate Round hinge can make these toilet hole bolts more rigid and stronger. When tightening the screws as the washers push into the holes, you must be careful not to tighten the screw so much that it pushes through the washer. Wide ApplicationsA kit of strong, reliable and sturdy mounting specially designed for toilet mounting brackets. Toilet lid seat fittings fit most standard toilet seats with Top-Fix hinges. Convenience and time saving. Package includes You will get 2 Pieces of toilet hinge blind hole fittings with expansion rubber bolts, nuts, washers, easy for your daily use. You only need to assemble the top fixings of the toilet seat lid and hinge once, which can be used for several years. < p>Size: Please see the size chart