Perfect Compatibility-The bathroom sink stopper fits open sink holes with width 1.34"-1.57" and depth >3.15". Please measure the sink size before purchasing. Widely used in washbasins, bathroom sinks and shower tubs. It comes with two sizes of rubber rings (34mm/1.34in and 40mm/1.57) to ensure a tight fit with various drain sizes. 2-IN-1 FUNCTION- Sink drain plug or filter? You need everything. Bathroom Sink Drain Strainer Unlike other traditional bathroom drain plugs, the pop-up sink drain plug has an anti-clogging basket inside that combines the drain plug and filter in one, what an expensive feat! High Quality Material- The universal bathroom drain plug is mainly made of high-quality ABS and stainless steel materials, with a shiny metal surface, the brass/plastic core structure of the drain plug bathroom sink ensures durability and longevity, rust-proof, reliable, and makes It becomes a reliable choice for your bathroom sink. Effective Filtration- The sink plug bathroom drain pipe has an anti-clogging basket strainer inside, get rid of the annoying tools to clean clogged pipes! Bathroom sink filters effectively capture hair while letting it drain out quickly. Don't worryabout clogging, unlike ordinary button drains, it can achieve effective filtration. Easy to Install- Installing the universal bathroom sink filter stopper is effortless. Just pull out the old bathroom sink plug and insert the new one and it's ready to go. To clean, simply remove and rinse under running water, then use a soft brushor cloth to remove stubborn residue.