Bang, bang! Knock, knock! Tap, tap!<br><br>19 Fun activities!<br>Lots of Moveable parts!<br><br>Budding builders learn through play how to measure, cut, hammer and more! Paper engineering that has been adapted to develop fine motor skills emphasizes realistic movements, allowing for safe and playful imitation of the real activity. Keeping little hands and minds busy, this first toolkit for the smallest builder is sure to please!