Create 3D structures from 2D nets with the 144 Piece Set! Follow the step-by-step idea booklet to build towers, rockets, castles, vehicles and more! This is the ideal set for ages 6 and up. The set has 144 total multi-shaped pieces in a rainbow of colors. The Magformers 144-Piece Magnetic Smart Build Set is an engaging way to build problem solving and visual spatial skills.