http://austinfilmtools.com/pages/gear_porta-jib.htm
Weighing only 29 lbs., it supports 40 lbs. of camera package. Unique telescopic design allows it to work in constricted areas and also unfold to create a dramatic 6 foot lift. Bubble levels on center column and camera plate for easy leveling. Arm balanced in seconds with sliding counterweight. Variable boom friction and pan friction. Vector Balancing bar creates perfect balance at all boom angles.
features: shortest longest o reach 38" 55" o boom 4.5' 7' o supports up to 40 pounds o telescopic design for use in constricted areas o boom and pan friction controls o 100mm bowl for camera head o center column mounts to 100mm bowl or Mitchell plate o bubble levels on center column and camera plate o sliding counterweight for balance fine-tuning o weight 29 lbs. / folds to 31" / in wheeled flight-case o fits easily in a car trunk