What is this?Garbage Disposal Strainer Cover Water Stopper, Kitchen Sink Stainless Drain Splash Guard with a plastic scraper, prevent the water and debris from splashing upward and reduce noise. avoid the spoon or chopsticks slipping into the drain. Bring you a more pleasant kitchen experience.What will I get?Size: 86*78*100mm/3.38*3*3.93 inch (OD*ID*H)Pack of 1pcsFits standard 3.38 inch. diameter drain openingsIs there any advantages of the product?Stainless Top head design with durable ABS rubber, oil resistance, wear resistance, heat resistance and strong adhesionHow to use it? The stopper is easy to insert and remove from your sink drain - no installation tools, no disassemblyWhat should I notice?Please confirm the size before you buy.