About this item High quality: Zinc alloy hinges, antibacterial, silver-plated surface, for MDF toilet seats, wooden toilet seats, and resin toilet seats. Corrosion resistance: The small screws are made of corrosion-resistant stainless steel, ideal for humid or poorly ventilated environments. Washers and nuts: Rubber washers. The rubber washers form a wide and durable rubber fixing nut with limited space. Easy installation: This set comes with all fittings and should be easy to install; all you need is a screwdriver. The zinc alloy toilet seat can be used for a long time without oxidation or corrosion, and is easy to clean. The zinc alloy is rust-resistant, antibacterial, and the electrolytic surface is not easy to peel. the bathroom, hotel, public places, etc. Product Description Features: Item Type: Toilet Seat Fixings Material: Plastic and Zinc Alloy This fixing hinge measures 3 cm high, 4 cm in diameter Screw Length: 1.5 cm White Plastic Fixing: 3cm, 4cm Replacement Hinges: No need