Stainless Steel: Made of high-quality stainless steel, the sink strainer is thicker and more durable. It's rust-proof and corrosion-resistant for a longer lifespan. It's resistant to rust, doesn't deform, and has a smooth, burr-free surface, making it convenient and safe to use. Suitable for daily use for long-lasting clog protection. Fine Filter: This sink strainer easily catches food debris and hair, effectively preventing drains from clogging and the formation of unpleasant odors. Practical: Easy to clean and dishwasher safe. The package includes 4 sink and bathtub drain strainers to meet your household needs. An essential tool to bring convenience to your life. Universal: 77 and 73 mm in diameter, suitable for most sinks and can be placed in bathrooms, kitchens, laundry rooms, floor drains, and other places with drain pipes. Size: Outer diameter: 77/73 mm, inner diameter: 45/43 mm, depth: 8mm