The Panosaurus head is constructed of  3/4" and 1/2" Expanded PVC plastic.  This material is lightweight and yet very strong and durable.  The rotator arm has been reinforced with aluminum strips.  The upright metal arm is made of 3/16" inflexible aluminum. Total weight of the Panosaurus is under 2 lbs (.9 kilograms).  Cameras mount in the portrait position either in the lens centerline hole of your DSLR style camera or the vertical slot (for cameras that have a tripod mounting hole off-center from the lens).  The ruled lines on the upper horizontal arm make it easy to remember where your camera needs to be mounted on the head once you find the optical center of your lens.

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