HOW TO ASSEMBLE A MODULE TOWER Did you like to play with LEGO™? Then you will love to work with our system!The new key lock function enables a safe and fast assembly. Check out the video how Wolfgang and Michael assemble a tower of 7 modules in no time. Play Video Alternative video link CLASSIFICATION PRODUCT DESIGN CONCEPT HOW IT WORKS HOW TO INSTALL HOW WE PRODUCE UNIQUE FEATURES TECHNOLOGY HISTORY