The Sumner Fold‑A‑Jack Hi Jack (Model 781300) is a collapsible, lightweight pipe stand with a V‑head, adjustable from 28″ to 49″. It supports up to 2,500 lb and features a quick‑action lockwasher for fast height positioning, a patented Fall Guard™ for safety, large adjustment handle, set‑screw locking for transport, and a carrying handle. Constructed with a 1″ square‑tube base and 1½″ Acme fine‑adjustment thread