ARCards ABC makes the alphabet come to life using phone or tablet-based augmented reality technology. Simply download the free app and aim the tablet or phone at the flashcard. Touch the images on the screen to hear letter pronunciation, fun facts about the 4 images on the front of the card, and to see a video. Flip the card over to practice writing the letter and play recognition games using dry-erase markers (not included). Flashcards are laminated write-on/wipe-off. Top is spiralbound. App works with iOS (9.0 or later) and Android (4.4 or later). Cards are approximately 9' x 5.5'.