Used it to keep the water from draining out of the sink.If your garbage disposal is some other brand, do not order this plug. It does not fit; it will not go into the drain; it will not work, iit does not fit the drain assembly! This is probably a good plug, if your garbage disposal is InSinkErator Brand (the garbage disposal it was made for!)Seller was prompt sending it - but I cannot return it, since it was packaged in plastic on a card, and I had to destroy the packaging in order to see if it would work! SUZQThis works to hold water in the standard sink, its the suction that does it, we still haven't found the original strainer. Highly recommend, I occasionally need to soak something and we don't have tubs in the garage, just the sink in the kitchen and when the strainer disappeared I was lost.We use this with the matching color metal ring for the garbage disposal, it looks great in our beige sink.Perfect fit for our InSinkErator drain, makes a great seal and water stays in the sink with no leakage for a long time. The biscuit color matches my biscuit sink very well.Fits perfectly if you have an Incinerator. It keeps water in the sink if that's what you need from time to time.PERFECT fit. I use it to fill my sink to the rim before activating my garbage disposal. This method is incredibly effective to clean up garbage disposals and making them smell fresh.The description says the color of this is biscuit but it is white. I bought the sink flange from the same company and it is biscuit but this stopper doesn't match the flange.