【High Quality】The toilet flush button is made of high-quality ABS material. The button surface has a chrome-plated finish, giving it an advanced and textured appearance, making it ideal for humid environments. It is resistant to corrosion and aging, wear and tear, and has a long service life. 【Dual Button Design】This replacement flush button features a dual button design for convenient use. The chrome-plated surface adds a textured, attractive, and elegant touch. 【Universal Application】The flush button fits most toilets on the market. The outer diameter of the button is 48 mm and its thread size is 38 mm. The inner diameter of the flush hole is 38-42 mm. Please check the hole size of your toilet seat carefully before purchasing. 【Easy to Install】The adjustable flush button is very easy to install. No drilling or other tools are needed; just open the toilet lid, remove the old button, insert the new dual flush button, screw it in, and you are ready to use. [Size Specifications] The flush button is made of ABS plastic; it is round; it has a dual button design; and the bolt stem is 80 mm long (the bolt stem can be cut).