Most adjustable pickup bed dolly on the market and will handle "Mini's" to "Full Size" beds, our stand can handle them all. Adjustable length hold "Mini" (36") beds and "Full Size" beds (48") and are adjustable to 3 working heights, 21", 24" and 27". Made of Heavy dust square steel tubing holds up to 1000 lbs, Included are 4 steel heavy duty steel castors with 2 locking