Premium Stainless Steel Material - Durable: This sink stopper filter is an upgraded version after collecting customer suggestions for product improvement. The kitchen sink strainer stopper is made of high-quality stainless steel - well-made, rust-free and long-lasting. Dual Function Strainer and Plug: This new sink strainer plug can be used as both a sink plug and a sink strainer/strainer. Press the knob to fill the sink, act as a sink stopper and lift gently to drain the water and act as a filter to collect any residue. Easy to use: Our sink stopper strainer is easy to disassemble and assemble. 10 seconds is enough, just follow the guide to first unscrew the center shaft and then assemble the accessories together. Dimensions Note: Please check for detailed dimensions. The outer diameter of the kitchen sink strainer is 78mm. The rubber seal is 55mm in diameter and the bearing to rim dimension is 30mm. Suitable for kitchen sink holes 78.3-80mm. NOTE: Please make sure the diameter of your sink strainer plug is the same as our product before placing an order! ! !