Dimension of the Sink Protector: 27-9/16 * 14-9/16 inch. Rear Drain hole diameter: 4.9 inch. Please measure dimensions to make sure they fit your particular style sink.How to Measure Your Sink:Please measure inside 1" from bottom of your sink to get the right size of grid, neither the top nor the bottom. There is side bumper on the grid, so please reserve at least 1/2" for both length and width with your measured size. And make sure you have feet placed to compensate for the rounding at bottom of sink. Please check the dimension of your sink before purchasing! The size and measurement method of the sink protector are shown in the picture display.Notice: This sink protector is divided into 3 pieces,very easy to combine them,as shown in the video,put the metal clasps down and push it forward to lock them together.It is a detachable sink grid, multifunctional use. Notice: Must remove the vinyl feet before placing the sink grid in the dishwasher.Multifunctional Sink Bottom Grid Rack - This sink rack can achieve more purposes than just protect your kitchen sink. They are perfect in cooling rack, thawing grid and drying rack to dry dishes, tablewares, vegetables, fruits, glassware, utensils and pans.Protective Sink Rack for Kitchen Sink- Sink grid is the easiest way to protect your sink from scratches and damage. They protect the surface of the sink from the utensils, pots, pans, cutlery and dishes. The 1" vinyl feet and protective bumpers ensure that the sink grid does not leave any marks.A must-have on your list of your home essentials.The sturdiness of the sink protectors along with 1" legs that food scraps go right into the drain or garbage disposal.The drain hole is just the right size to be able to grab the drain strainer out to empty it without having to remove the whole grid.