Our natural Slate Rectangle Serving Tray has been etched with a classic corkscrew. This tray is a delightful way to serve up your cheese pairings with your favorite wines. This makes a unique hostess gift. Slate is a natural product that is food safe and easy to wipe clean. 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.