Each package includes 5 pieces of standard A4 (8-1/2" x 11") that's 9mil in thickness (.009") and is designed to fit easily into your printer to allow you to print anything you would like on it. Simply use them as you would normal paper in an inkjet printer. The matte finish means that you can print photographs, advertisements, lists, or anything else on a durable, flexible surface. The thin material means that it's also very easy to cut with scissors or a knife so that you can make it into any custom size or shape! Please note that these are for use with inkjet printers only, not laser printers.