Features WHAT YOU GET - You get 3 dual flush toilet buttons. PREMIUM BUTTONS - Dual flush buttons are made of high quality plastic and stainless steel springs. The dual-flush toilet valve is manufactured with superior plating technology for a smooth surface and long life. NOTE: Please measure the diameter of the water hole on the tank at home before purchase. (This toilet button is suitable for most dual toilets with a 58mm water hole in the tank lid). DUAL BUTTON DESIGN - Dual buttons allow you to choose between full or half drain for better water conservation. You can adjust the length to shorten or lengthen as needed. Easy Installation - The toilet tank button is very easy to disassemble and install, with a simple structure that is not easy to be damaged. The spring can withstand multiple pressures and has excellent elasticity. Product NameRound Toilet Button Material: plastic Product size: button 58mm suitable for aperture 58-64mm within the tank lid aperture Specification: Installation size 58mm Color: silver Packing list (available after purchasing one product) Button x3 Please understand: 1.Due to the long shipping time, the item may be damaged during transportation. If the item is damaged, please leave us a message through the official website immediately and then post a comment, I will solve the problem for you. 2. Due to manual measurement, the size may have 1-3cm error. 3. The color may vary from monitor to monitor.