Plastic Serving Tray. Store in freezer until ready to use. The water inside the tray stays frozen for hours and keeps your items fresh and cold! Dimensions edge to edge: 7.25"x12" Dimensions serving space: 4.5"x7.75" Use the Ice Plate for anything you want to keep cold! We prepared our Carmie's Kitchen Strawberries N Cream Cheesecake Mix as a cheeseball and served it alongside fresh strawberries. You could also use for serving a cheese plate, chilled shrimp with cocktail sauce, or fresh fruit. Hand-wash only.