Interfit COR762 Auto Pole Set Description. Ideal for mounting paper or vinyl rolls for the mobile studio photographer where a standard background support system would not be practical. The auto pole set simple push fits between the floor & ceiling being locked into place by the vertical bars of the kit. The background rolls are held in place via the expan clamps which feed into the standard tubes of the background. The kits is able to hold up to three rolls at any one time allowing a quick & convenient change over of colours to be used.