WonderLab Inc. Popular Brain-Training App Think!Think! Brain-Boosting Card Games 100 Ages 3-6 A brain-training card game from the team behind the popular educational app "Think!Think!" and the STEAM educational materials "Wonderbox." Featuring mazes, puzzles, word games, drawing, and more, 100 games are included on 50 cards, and you play by drawing directly on the cards with the included pen. The eraser on the pen and tissues make it easy to erase, so you can enjoy it again and again! ※This book is a revised and updated version of our publication "Write, Trace, and Grow Your Brain! Think!Think! Hanamaru Lab's Brain-Boosting Cards 100," with a new title and design, and a more affordable price. Publisher: Tokyo Shoseki Release Date: September 2020 #EducationalToys #ThinkThink #BrainTraining #Cards #WonderLab