Connector sets
The assorted collection of colored connectors is perfect if you're a truly independent designer. Used with your own recycled cardboard, create anything you can imagine. Make castles and kingdoms, parking garages, police stations or even a cage for your little brother. The connectors work with most single ply cardboard.
GOBOX plus cardboard shapes
GOBOX - Mega Set
Connector Set - Medium
Connector Set - Jumbo