Our 12x17 Baking Mat is a reusable, eco-friendly alternative to expensive parchment paper, non-stick spray, and aluminum foil. It's perfect for cookies, biscuits, rolls, roasting vegetables, frozen foods, and candy-making. Measured for standard half sheet baking pans, and can be cut to fit any custom size.Dimensions: 11.5 in L x 16.5 in W