Built-in anti-clogging filter-Unlike ordinary button drains, the drain plug has a basket filter inside, which neatly collects human or pet hair and prevents it from clogging. Items will not enter the drain, such as jewelry, rings, dirt, etc. When you need to clean up, just remove the filter and wipe it clean High Quality Material-Pop-up drain plug, drain flange, threaded pipe are made of brass, and the tail pipe is made of thickened high-quality 304 stainless steel. All-metal construction for maximum durability. Excellent surface treatment, corrosion resistance and rust resistance. Easy to operate- Spring-loaded buttons do not require lift rods. Simply push the drain cover down to close and seal, push again to open and drain. You can unscrew and remove the top cover by turning it counterclockwise. [Easy to Install] - Anyone can install a pop-up drain. Simple structure, no tools required. Thickened extension nut allows freehand installation (see product image or description). The package includes a drain housing with 2 gaskets, a pop-up plug with filter basket, a brass nut and a plumbers tape. [Standard 1 3/4 Drain Pipe] - Fits bathroom sink holes 1.46 to 1.9 in diameter. Maximum sink thickness is 1.97. Tail Piece Diameter: 1 1/4. Great for overflow sinks (counter container sinks, vanity sinks, etc.)