Reed's R450GB is a Tripod Chain Vise. It has a 1/8" - 4" capacity. It weighs 27.6 lbs. This tripod vise is among the strongest pipe vises available, with it's manufactured with heavy gauge steel, overlapping hinges, and the best adjustable tray clamp instead of a set screw, to keep the lower tray assembly and entire portable workbench tight. This tripod folds into a compact shape, has a padded handle grip at the balance point, and boasts the lightest weight for the easiest portability of all well-known tripods. It comes with rubber-coated jaws provide protection against damaging plastic pipe and soft metal pipe, and are easily rotated from plastic pipe to metal pipe position to protect against damage and to maximize productivity.