FOLLOW THE LINK AND FIND OUT HOW IT WORKS:-

https://www.youtube.com/watch?t=14&v=uL-XTfW-Ks4

-Packing box included manual guide and sufficient building blocks.
-Small parts not for children under 3 years.
-More than 100 pcs blocks per packing
-Train your kids practical ability ， give yourself full of happiness.