Students run a finger down the Flipper to the topic they want to refer to. Then they "flip" the laminated cards up to reveal the card containing the information needed. Each Flipper contains hundreds of rules, examples, and definitions printed on both sides of 3.5" x 5" laminated cards. The laminated cards are attached to a 6.5" x 11" plastic backing. Three holes permit carrying the Flippers in a 3-ring notebook.