There are differrent number of sets which contain different numbers of blocks such as.
Model numbers 1404 & 1405 has 506 PCS.
Model number 1407 has 577 PCS.
Model number 1409 has 518 PCS.
Model number 1412 has 498 PCS.
Its a 6 in 1 transform brick set series.
With this building block set children can build different starwars transformation characters as well as different desing of vehicles.This product can engage your kids in mind creative & constructive activities.