These envelopes are 9.75" x 13" in size and have a 1 inch expansion. They have a full sized pocket that opens on one side and two smaller pockets on the other. The smaller pockets are 5.5" x 7.25" and 5" x 9" in size. Store and protect documents, files, notes, index cards, pens and pencils all in one unit with a pocket perfectly sized for each of them! Each pocket has a certified hook and loop closure for secure closing and simple opening. The pliable, yet heavy duty poly plastic material of this envelope will protect your papers and items from bending, ripping, scratches, stains and other damage. Their clear quality makes them appropriate for any office or school setting and allows you to see your stored items from the outside.Details:Clear9.75" x 13" each12 envelopes3 pocketsHook and loop closurePliable, durable plastic