[STANDARD INSTALLATION DIMENSIONS] The chrome-plated brass head and matching silicone gasket make the perfect rust-proof bathtub drain stopper for any 70mm diameter drain. This will keep your drain hole sealed. [HEIGHT ADJUSTABLE 38MM - 50MM] Our bathtub stopper can be easily adjusted and sealed manually. 1 bathtub drain stopper with a diameter of 70mm, this is the perfect bathtub stopper for any bathroom. The bathtub drain stopper is made of brass. Note: The data is all measured manually, please allow an error of 1-3cm. Due to the difference in light and display, there may be some color difference. The item received shall prevail.