Push Button Switch 1) Botton for cistern & tank 2) ABS+chrome plated 3) Diameter: 38mm 4) Shape: sqaure,oval&rect Dual Flush Push Button: Installation Dimension:38/48/58mm Gentle Touch, Press Botton Easily Easy to Install & Maintain Anti-Corrosion Adjustable Installation Height Chrome Plated 1,Material ABS Engineering Plastic, High Quality Silicone, EPDM, POM, Durable2,DesignMore Patented New ...