Vance Trimmable Under Sink Tray for 30 in. Base Cabinet, 4UST30W Vance sink base liner tray protects cabinets from spills and leaky plumbing or bottles Made from durable, easy-to-clean Polystyrene Removable for easy access and cleaning Includes overflow spout to warn of leaks Easily trimmed to fit most standard cabinets 2-piece adjustable Fits from 39" to 55" wide x 22.25" deep