- Versatile Compatibility: This bathroom sink drain stopper fits 99% of standard US sink drains, accommodating drain holes from 1" to 2.3". Measure your sink drain hole before purchasing for an optimal fit. The package includes four O-rings, ensuring compatibility with various drain openings. Note: Not suitable for bathtub drains. - Innovative Anti-Clogging Feature: The upgraded pop-up drain stopper features enhanced sealing and anti-clogging capabilities. Its integrated basket effectively traps small items like hair and jewelry, preventing blockages. The brushed nickel-coated large cap offers an extended pressing area for easy operation and adds a stylish touch to your bathroom décor. - Upgraded 2-in-1 Design: Designed for stability, the sink stopper incorporates rubber rings around the hair-catching basket. Its flexible elastic mechanism provides impressive rebound strength, allowing effortless switching between water storage and drainage with a simple press. - Durable All-Metal Construction: Crafted from high-quality stainless steel, the pop-up sink drain strainer is corrosion-resistant and built to last. The bounce cap and hair-catching basket are made from premium brass with a brushed nickel finish, ensuring exceptional durability and performance. Use Scenarios: 1. Ideal for daily bathroom use, effectively preventing hair and debris from clogging your sink. 2. Perfect for households with pets or children, keeping small items from going down the drain. 3. Great for quick cleanups after grooming or washing hands, allowing for easy water drainage and storage.