These professional heavy duty extension columns made of aluminum alloy material with enough wall thickness to increase safety and stability purposes. Columns come in different length to suit you needs. 40mm internal diameter is allowed you to route your power and signal cables inside poles. The length is 760mm. Comes with HA618 and HA718 extened the length to 1350mm.
* Aluminum alloy extrusion with 4mm wall thickness to increase safety and stability purposes.
* Inner diameter is 40mm
* Length is 760mm