This package of Pocket Pages 1 is from the Planner Essentials Collection from Elizabeth Craft Designs and the pages are compatible with A5 Slim Planners (sold separately). There are four styles of pocket pages in this package and you get three per style. The measurements for each of the pages are as follows: One page has two sizes of pockets, the top is 4.1" x 6.1", the bottom pocket is 4.1" x 2". The second page has four pockets, the two largest pockets measure 4.1" x 3.1" and the small center pockets measure 2" x 2". The third sheet has two pockets, each measures 4.1" x 4.1". The final page is a smaller page and has two equal pockets that measure 3.1" x 4.1". You can add so many pictures and embellishments, papers, and more, and you will love creating your Slim Planners with these pocket pages.