1 Pocket Poly Plastic Pages. Holds a 8 1/2 X 11 sheet of paper. Inside dimension of each pocket is 8 7/16 X 11 1/4". Pages are top loading. Package of 10 each. These are polypropylene not vinyl. They are stronger than vinyl and will not allow the colors to be drawn out of the patches. They are lighter weight but stronger and will not allow the pages to be torn out of the binder.