These Marbig Business Card Pockets can help to store and protect your business cards and contact information. The binding is reinforced to keep the pockets in tact and comes prepunched so you can insert them into binders. They are A4 size which makes them convenient for everyday use The pockets have a durable polypropylene construction to be long lasting They will suit 2, 3 and 4 ring binders so there's no need to punch holes These pockets are clear so you can easily see what's inside Each pocket holds up to 20 cards, giving you space for up to 200 cards