Custom made to fit sink model AB3018SB, AB3018ARCH, AB3018UM Made of solid high quality 304 grade stainless steel, this grid is built tough and made to last the test of time. This grid helps protect the surface of your sink from scratches or stains caused by heavy pots and pans or sharp knives. Stands on durable plastic feet raised about half an inch above the bottom of the sink. Features center crossbar for extra support. Universal accessory for multi-purpose use such as dishware drainer, rinse rack etc.