Passed US ASTM 963 Safety Certificate,Absolutely Non Toxic!
Deluxe Crazy Ball Marble Run Super Set Building Blocks Railway Construction Toys,It is both educational and fun,
Ideal Choice for Birthday Gift,Children Party Favor,After-School Fun,Christmas Presents and all other Holidays.
It's a kind of run race toy,set of blocks that can improve children's operational ability,colorful and beautiful appearance can
Stimulate their intellectual development
Create your own maze balls track by using your imagination,build various tracks and watch the marbles race through the track!
Interactive game - play with parents or friends
Caution for small components,not for children under 3 years in case of swallowing or choking