【4 Piece Toilet Seat Set】- The toilet seat includes 2 pairs of toilet seat fittings. 【Product Size】- The toilet seat is made with silicone sleeve and stainless steel screw, silicone sleeve length 40mm, width 18mm, silicone seal diameter 28mm, screw length 48mm, diameter 5.7mm, seal 14mm . 【Universal Size】 - The screws are universal for the toilet when they fit through standard toilet holes and/or with blind holes. Once tightened, the rubber expands and completely locks the shelf. 【Easy To Install】 - The toilet seat fixings are very simple to assemble and truly universal, installed in seconds without problems. 【Excellent Material】- The flap mount glasses have high quality with smooth surface. Good screw hardness, not easy to break. Features: The toilet screws are very easy to install in minutes, just remove the old bolts to clean the area and insert the new one. Product specifications: Material: silicone steel< /p> Screw diameter: 5.7mm Length: 48mm Color: Black Friendly Reminder