ITEM NAME:300mmx2000mm Dry Film Photoresist Sheets for DIY PCB 12x80" This is for >>>300mmx2000mm Dry Film Photoresist Sheets for DIY PCB 12x80" / brand new.Apply Resist: This Photoresist has 3 layers, the top and bottom layers are clear protective layer, so at the first, you need remove one protective layer, the easy way is to use two small pieces of scotch tape.