1. MaterialToilet seat hinges replacement parts are made of high quality 304 stainless steel, rubber and ABS plastic, with good antiaging, antioxidation, rust and corrosion resistance, sturdy and durable. 2. Single Slot Hinge The fixings of the toilet seat cover have a pin length of 33 34mm with a single slot, so they only fit similar sized toilet covers with a single slot hole. Please note this when installing. 3. EASY TO REPLACE Lid hinge fittings come with screws, making them easy to install. Simply remove the toilet lid, take off the old hinge section and install the hinge with a screwdriver. The screws are screwed in from top to bottom, which means you don't have to drill under the lid to tighten the screws a practical and practical design. 4. Wide application: toilet seat cover fixings are suitable for toilet seat covers with ceramic holes with a diameter of 14 20 mm, which are used on most standard toilet seat covers made of wood, resin and MDF with a single fixing hinge on the top.