We have recently developed our own Job Backer. Constructed of tubular steel with a gross weight of only 170 lbs. The jaws measure 17" in width and will open to 6". This unit stands 36" high and occupies only 19" x 19" of floor space. Each unit comes equipped with a pair of copper jaw protectors. For a more permanent installation, the machine can be bolted to the floor. The frame comes pre-drilled for this purpose.