Versatile telescopic boom for skid steer this hydraulic attachment is for setting roof trusses and moving construction materials around job site. It has a fully contracted length of 9 feet and a fully extended length of 21 feet. The unit is compatible with loaders having capacity of 1800 lbs or greater. It has a maximum load capacity ranging from 350 to 750 lbs depending on extension. See Quick Attach web site for instructional video.