OPAK 0.5mm polypropylene Display Book Crystal pockets 80 views, A4 In semi rigid polypropylene 0.5mm cover structured matt, stain and scratch resistant, the display book also called Opak document holder is of superior quality. It is equipped with crystal pockets, high transparency for perfect reading of documents and comfort in the insertion of sheets. Easy to transport, light and resistant, it is very practical to protect documents and keep them in hand, dry in any situation. To choose your document protector, identify the number of pages in your file and choose the capacity accordingly. 1 pocket = 2 views (front and back). 80 Views, 40 Pockets In semi rigid polypropylene 0.5mm cover structured matt, stain and scratch resistant, the display book also called Opak document holder is of superior quality. It is equipped with crystal pockets, high transparency for perfect reading of documents and comfort in the insertion of sheets. Easy to transport, light and resistant, it is very practical to protect documents and keep them in hand, dry in any situation. To choose your document protector, identify the number of pages in your file and choose the capacity accordingly. 1 pocket = 2 views (front and back).