The crystal-clear Oxford vario zip plastic pockets are ideal for protecting and storing your important documents in vario zip ring binders. These A4 insert sleeves are made of 70 micron smooth polypropylene and are of good quality. The contents of the crystal-clear plastic pockets are therefore very legible. You open the 12-hole folders from the top. The Oxford vario zip plastic pockets are easily removable. You can therefore easily arrange and move them. This pack contains 10 plastic pockets, which also fit in a 4-hole folder.