This NoTrax cutting board is constructed of high density rubber compund. Won't crack, splinter, swell, or absorb liquids or odors. Lasts far longer than wood or plastic. National Sanitation Foundation (NSF ) tested and certified. Resiliency preserves knife edges longer. Can be resurfaced by sanding. Manufactured with MicroStop anti-microbial rubber compound. 18"W x 12"D x 3/4" thick overall. 18.13 L. 12.13 W. 1.00 H.