DURABLE CONSTRUCTION- The pipe jack stand is constructed of premium steel, resistant to rusk and corrosion. Height is adjustable(from 28in to 52in) to meet different needs. HEAVY DUTY V-HEAD- V-head with 4-ball transfer, easy to install. Lock washer ensures safety and large capacity. Lifting weight can be up to 1500 lbs. PORTABLE & COMPACT DESIGN- The whole stands is folding. Storage wont take your much space. A portable handle wrapped by rubber is also a highlight. Easy carrying and storage. GREAT STABILITY- The rounded foot pads of this stand is widened. The strut tension plate for superior lateral support. Stability is enhanced when you are working in the uneven place. WIDE APPLICATION- Welding of heavy pipes, shapes, solids and rounds. Support pipe during pipe threading, pipe hole cutting, roll grooving, etc.