GRIDMANN 15" x 21" Commercial Grade Aluminum Cookie Sheet Baking Tray Pan Three Quarter Sheet - 6 Pans Commercial grade 18 gauge aluminum baking three quarter sheet - Actual Size: 16" Width x 21.75" Length Wire reinforced beaded rim helps prevent warping Aluminum pan provides quick and even heating and cooling Easy to clean - Hand wash only Restaurant kitchen quality - oven, freezer or display case