This box contains 400 A4 Ryman Punched Pockets made from acid free 50 Micron clear polypropylene. These top opening punched pockets are standard weight and can be used with all types of ring binder. These A4 pockets are an ideal way of keeping documents clean, crease-free, organised and secure. Ryman Punched Pockets are perfect for office or student use. This great value pack of 400 is an ideal way of keeping papers and documents in pristine condition.. Pack of 400. Clear