About this product: 2 flush buttons, with dual flush and water-saving function, in line with most people's water consumption habits. It is compatible with most dual flush toilets with 38mm-50mm hole in the tank lid. The double push toilet button is made of brand new ABS material, with stainless steel springs. The galvanized surface is chrome-plated, with elegant appearance and not easy to age, with strong corrosion resistance. Equipped with two 4.5 inch long screw rods, which can be cut as needed to fit toilets of different heights. Product Description: How to choose: First roast the old damaged toilet lid button, measure the inner diameter of the toilet lid mounting hole, our flush button is suitable for mounting in round holes in ceramic from 38 mm to 50 mm. Type: Toilet push button. Material: ABS plastic. Feature: Environmentally friendly. External diameter of the button: 50 mm. Thread diameter: approximately 38mm. Screw Rods Length: Approx. 114mm. Package including: 2 x Toilet Water Tank Push Button. Warm Tips: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight domension difference due to different manual measurement.