It's a rack that rests in the bottom of your sink, protecting your basin and everything in it from chipping. Now dishes can drip and dry right in the sink. Center cutout for drain and disposal. White, vinyl-coated wire. Standard size (10"W x 1"H x 12"D) fits most sinks; large size (12 1/2"W x 1"H x 16 1/4"D) fits new larger sinks.