About this article[Universal size] This sink siphon is suitable for all types of strainer basket siphons. Suitable for drain holes with an internal diameter of 32 mm to 42 mm (1.26-1.65"). Note: Please measure the size of the drain hole before purchasing to prevent the product from fitting into the drain hole. Stainless steel materialThe basin cap is mainly made of high-quality 304 stainless steel and thick copper, strong, rustproof, tear-resistant, in one piece, quick drainage and waterproof. [Built-in Filter] This sink is equipped with a non-obstructing filter that easily collects hair accessories, rings, dirt, etc. Effective in preventing sewer blockages, it is a removable and washable sink cap that simply cleans dirt stuck in the filter to avoid having to seek the help of a plumber. [Anti-bounce Function] Our bathroom sink cap is made with a solid brass rebound core for excellent anti-rebound and anti-rebound capabilities. The flush plug can be closed and opened in less than a second No more plugs and leaks [Easy to clean and install] The sink drain plug makes it quick and easy to remove the old rebound core and install a new one, without tools. The all-metal sink cap can be completely disassembled into 3 separate sections for cleaning