Build with a plan or get wild and wacky with this 148 Piece Magneatos Jumbo Set. Big and little builders can take their Magneatos Jumbo creations to the next level with these Master Builder sets. The new series of panels, clips, and bendies work with classic Magneatos Jumbo balls and rods to add a whole new dimension to building. Bendies twist and turn and curve and flex! This Magneatos Jumbo Master Builder Series is toddler safe and conforms to ASTM F963 safety stardards for ages 18+ months.