Instructions
Break apart the Struxx 40x building set pieces. Each piece is connected to another with a thin bit of plastic. Snap them apart with your fingers.
Slide the ends of the rods into the connectors until they click in place.
Place the open ball connectors over the smaller balls and clamp them down until they click in place.
Slide the green connectors over the rods and snap them in place.
Slip a rod through the hole in a silver two-way connector and click it in place to create an axle.