Solid hard rock maple makes these Reversible Cutting Boards by John Boos sturdy and durable in your kitchen. With edge grain construction, the boards are 2-1/4" thick and are finished with a penetrating oil. Available in multiple sizes, the boards have a Boos Block Cream Finish with Beeswax and are approved by the National Sanitation Foundation (NSF), making them sanitary for your kitchen. The boards ship via UPS/FedEx Ground.