These 16" diameter cutting boards are made specifically for the round sinks of Airstream trailers( Signature, Flying Cloud, International Serenity) . The maple mix is the base price. Modifications can be made for a mostly walnut mix and the elipse cutout for the faucet. We ship in the continental US. We welcome any questions or clarifications via email firstname.lastname@example.org . These boards are not premise so the process can take up to 4 weeks to produce and ship.