The sturdy construction and dry erase technology combine to create an economical study tool for students to use. Incorporate this study aid in the classroom and at home to help encourage children to keep practicing their skills. Super Heavyweight Plus Dry Erase Pockets stand up to daily use by students. Details: Assortment includes 5 each primary colors: red, orange, yellow, green and blue Insert Size: 9" x 12" or smaller sized papers Box of 25Easy load design is open on two sides for easier access to worksheetsColorful cloth binding edge for long-lasting use Reusable to help to save the environment and paper by eliminating the need to copy worksheets over and over Convenient eyelet for hanging Easily cleans with a soft dry cloth or tissue when used with a low-odor dry erase marker or dry erase crayon (not included)