Elba Expandable Punched Pocket A4 With Flap Embossed Polypropylene 180mu Clear (Pack 10) 100080754 Protect larger documents with these punched pockets. Made from strong polypropylene with a reinforced spine to support it when filed in a ringbinder or lever arch file. The expanding pocket with flap is ideal for catalogues, magazines, brochures, maps and other thicker documents.