This deluxe kit includes three activity books for three different "spy" technologies: decoder ring, clue-revealing spy glass, and secret-message pens. 75% paper, 10% plastic, 10% ink, 5% felt Includes Secret Decoder Game Book, Seek & Find Game Book, Secret Message Activity Pad, and magic-reveal sticker sheets Use the tools to decode, write, and reveal invisible messages Part of the Melissa & Doug On-the-Go line of travel games and activity books Age Rating: 7+ years Made in China