Premium Stainless Steel Material: This durable sink strainer stopper is an upgraded version after collecting customer feedback for product improvement. The sink strainer is made of high-quality stainless steel - well-made, it won't rust and lasts for a long time. Easy to Use: Our sink stopper filter is easy to remove and assemble. 10s is enough, just follow the guide to unscrew the center shaft first, then assemble the accessories. You can check picture 6 for details. Dual-Function Strainer and Stopper: This new sink strainer stopper can be used as both a sink stopper and a sink filter. Press the button to fill the sink as a sink stopper, and lift it slightly to empty the water and collect all the residue as a strainer. Size - 78mm: Please see picture-2 and picture-3 for details. The outer diameter of the sink strainer is 78mm. The diameter of the rubber gasket is 55mm, and the measurement from landing to edge is 30mm. Suitable for sink holes from 78.3mm to 80mm. Note: Before