3 3/8 inch (8.57 cm) - Kitchen Sink Stopper Stainless Steel Garbage Disposal Plug Fits Standard Kitchen Drain Size of 3 1/2 inch (3.5") Diameter

Perfect fit! Rubber gaskets on the side create a nice seal. I like the metallic feel and look. Also feels quite sturdyBefore getting this I'd have to shove a wet rag in the drain to defrost meat. I'm way too excited about this drain plug hahaI took a pull back photo of the insinkerator to give you an idea of the sink I have. I did measure before ordering

Sometimes things need to be soaked in the sink when fat has been broiled onto them and it’s not possible without a kitchen sink stopper. I was concerned that this one would not fit my kitchen sink even though the diameter I measured and the diameter of the stopper seemed to be the same. Fortunately it was right and I got it the very next day to soak my broiler pan.

This is for a garbage disposal but I purchased it for regular use in my sink. It works really well and is very stylish rather than the rubber

Would’ve been great if they weren’t so tough to push into the drain and pull out again.

The old plastic stopper leak like the Dickens. This one does not. Buy it if you want a good seal.

This stopper holds water on the sink.

Works great! Seems like a good universal fit for most sink drains and it's decent quality.

It doesn't fit my sink, too big, after reading the reviews of others who had purchased this product I felt confident that it would fit my sink but it doesn't, it's well made but too big.