Our Slate Rectangle Serving Tray has been engraved with a wedge of cheese. Share your favorite cheeses with your friends and family. Our natural slate is food safe and easy to clean. Slate boards come with a soapstone pencil that is perfect for writing directly on the slate. USA Made. Lifetime Guarantee. Slate with cork feet. This product have a lifetime guarantee, but please be sure to take good care: Wash in warm soapy water immediately after each use and dry thoroughly. Do not uas a cutting board because it will dull your knife.