The HD film is perfect for creating halftones. The film is 2mil thick. There is no washout and no adhesive required. Simply develop and apply and blast. This is perfect when going portable to shows or kiosks in malls. Great for gift items. The artwork needed is the opposite of the wash out film. Whatever is white will be etched into your surface. The grit size should be 180 or 220. You can use this with the All the Jet Stream systems. The Jet One needs the blue nozzle. The sheet size is 10" x 12" 10 sheets to a box. Note: It is not for deep carving.