No more clogged drains: The pop-up drain comes with a built-in anti-clog brass filter, designed to easily block any type of human or pet hair without disrupting water flow.When it's time to clean it, simply remove the filter and wipe it clean.No harsh chemicals required, no more complicated clogs to remove. No Leaks, Easy to Install: This sink drain set comes with 1 heavy brass nut and 2 silicone gaskets.Please ensure the gaskets are in the correct position (please refer to product images) to avoid leaks.One-piece body (two non-separate parts connected by a threaded rod) designed to prevent leaks and is easy to install. SUS304 Stainless Steel Body, Anti-Rust: The body is made of premium type 304 stainless steel, with 18/8 chrome/nickel content to protect against corrosion and rust. Standard 1 3/4" (4.4 cm) drain opening: Suitable for sink hole diameter of 3.7 cm to 4.8 cm. Max. sink thickness: 5 cm. Drain diametertailpiece: 3.175 cm Ideal for sinks with overflow (basin, washbasin, etc.) Joint tape included: The package includes a drain box with 2 joints, a pop-up drain with its strainer, a brass nut and a roll of joint tape.