Ingenio Magic Numbers Flash Cards Learn the numbers (from 1-20) along with their names in English, French and Spanish Using a dry-erase marker and following the outline on the back of the card, children will learn to write the numbers from 1-20 Layers and multiple images are laminated beneath a unique lens material which allows the child to experience the changing images and 3D effects Reclosable ring keeps all 20 cards together for on-the-go fun Plastic lenticular cards are large (3.5" x 4.0"), very durable and easy to clean