Xtreme Mats Under Sink Bathroom Cabinet Mat, 27 5/8 X 18 7/8, Grey Holds up to 3 Gal. of liquid in the event of a product spill or leak Fits cabinets with INTERIOR dimensions of 27 5/8 X 18 7/8 in. and larger Eco-Friendly, low density polyethylene construction allows for flexibility and durability Water Sensor sold separately! Please make sure your plumbing isn't coming through the floor before ordering! Available in 7 sizes and 2 colors for both kitchen and bath You have a leaky pipe Can&#039;t stop the water from leaking around your faucet or soap dispenser Your trash can is placed under your sink You store wet sponges or wash clothes under your sink You can no longer see the back of your cabinet You&#039;ve just remodeled your home You want your cabinet to last until you sell your home You&#039;re looking to sell your home Just bought a new home or vacation home Sidewalls of the mat flare out allowing for a snug fit.