About this item [Universal Size] This sink drain is suitable for all types of strainer basket drains. Suitable for drain holes with an internal diameter of 32 mm to 42mm (1.26-1.65"). Note: Please measure the size of the drain hole before purchasing to avoid the product not fitting into the drain hole. 【Stainless Steel Material】The basin plug is mainly made of high quality 304 stainless steel and thick copper, strong, rust-proof, tear-resistant, one-piece design, fast drainage and waterproof. [Built-in Filter] This basin drain is equipped with a non-clogging filter that easily collects hair accessories, rings, dirt, etc. Effective in preventing sewer blockages, it is a removable and washable sink stopper that makes it easy to clean the dirt stuck in the filter to avoid having to ask a plumber for help. [Anti-bounce Function] Our bathroom sink stopper is made with a solid brass bounce core for excellent anti-bounce and anti-bounce capabilities. The flush stopper can be closed and