Ruvati RVA1218 Solid Wood Cutting Board, 18" Solid sapele (african mahogany) hardwood construction Universal size: Fits any rectangular or square sink with a 17 inner bowl dimension Step design on the bottom surface ensures cutting board Fits securely over your sink and does not slip into the bowl Overall dimension: 18 long by 11 wide by 1 thick Fits these ruvati sinks: Rvh7200, Rvh7350, Rvh7400, Rvh7401, Rvh7405, Rvh8000, Rvh9200, Rvh9201