**********The 10" round base is constructed of steel for strength*****Six rubber feet on the underside of the base keep the stand stable and reduce floor vibrations*****Spring-loaded plunger/anti-rotation feature makes the base threadless and easy to turn - just push and turn*****The convenient design allows setup of a quality weighted base stand instantly, instead of opting for tripods to save setup/tear down time*****Diecast mid-point clutch provides height adjustments from 34" to 60"*****5/8"-27 solid threaded upper shaft with positioning washer