- Compatibility: Upgraded Edition Bathroom Sink Stopper fits US standard drain holes with an inner diameter of about 1.1–1.5 inches. Please measure the drain hole before purchase. It works with basin, bathroom sink drains, and shower/tub drains. - Premium material: Made of anti-cracking thickened stainless steel and brass. Durable with a strong structure for long life and water-tight performance. The plug has a bullet-core thrust shape, good rebound strength, and a flat, comfortable finish. - Anti-clogging design: Dual filtering function with an anti-clogging basket on the surface and inside to prevent hair and debris from blocking the drain. The filter cover is removable for easy cleaning. - Easy to use: Three silicone rings around the built-in filter basket provide stability and prevent tilting when pressed. Fast, smooth drainage and quick sealing with a single press. It aligns with the sink drain hole under water pressure for reliable sealing and drainage. - Use scenarios: In a bathroom sink for quick water sealing during shaving or washing; in a shower or bathtub drain to trap hair and prevent clogs while filling or cleaning; in a utility basin or laundry sink to hold water and catch debris during cleaning tasks.