Fastener made of cardboard 355 g/m², A4. The fastener is suitable for punched A4 documents. It allows for the storage and presentation of up to 350 sheets (80 g). This fastener is made from cardboard of unique quality, homogeneous and colored, without lacquer and without the addition of plastic materials. It is more durable than all other everyday use cardboards. With its 355 g/m², this fastener is additionally very robust and long-lasting. The cover with pre-printed design allows for easy labeling of the contents. FSC certified. The fastener is manufactured in our plant in Germany.