an adjustable arm with two or more sections the sections can be adjusted with a crank or a screw a pointed tip on one end a flat surface on the other end a metal frame or column for stability a clamp or arm to attach the device to a larger structure
pantograph which is an adjustable arm with two or more sections pantograph which has the sections can be adjusted with a crank or a screw pantograph which is a pointed tip on one end pantograph which is a flat surface on the other end pantograph which is a metal frame or column for stability pantograph which is a clamp or arm to attach the device to a larger structure