Thick Pockets Glass clear, recyclable PP foil (0.11 mm), copysafe Top opening for simple paper removal without releasing the binder mechanism 11 holes for all-purpose use For A4 format, there's no need to fight to insert sheets. Carry-on Capacity: up to 30 sheets; top opening; A4; ideal for filing cabinets and folders Water-resistant and smooth material ideal for lever and ring binders Because of its universal perforation, it can be conveniently stored in filing cabinets and folders of all sizes. For increased durability, there is white plastic reinforcement on the perforated strip. Recyclable polypropylene film with a thickness of 105 microns No text transfer using Copy-Safe technology from paper to plastic Measuring 230 by 302 by 1 mm