A multi part construction toy incorporating rod and connector elements, as well as block elements, modified in a way to accommodate the building of {HEAD ~ hybrid structures} utilizing {TAIL ~ both types} of building components 
utilizing
A multi part construction toy incorporating rod and connector elements , as well as block elements , modified in a way to accommodate the building of { HEAD ~ hybrid structures } utilizing { TAIL ~ both types } of building components
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH