No more clogged pipes: The pop-up drain comes with a built-in anti-fouling brass filter, designed to easily block any type of human or animal hair without disrupting the flow of water. When it's time to clean it, simply remove the filter and wipe it down. 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 make sure the seals are in the correct position (please refer to the product pictures) to avoid leakage. One-piece body (two non-separate parts connected by a threaded rod) designed to prevent leaks and install easily. SUS304 Stainless Steel Body, Anti-Rust: The body is made of premium Type 304 stainless steel, with an 18/8 chromium/nickel content to protect it from corrosion and corrosion.