Features: High quality aluminum tubing and high tech finishes make for a durable, dependable and lightweight stand . Telelock adjustable collars so that speakers lower slowly - won't fall . Lock Lever speeds up set-up and gives a visual warning if it is not set up correctly . Stand height adjusts from 3' 8" up to 6'7" . Stand top adjusts from 1-3/8" to 1-1/2" diameter to fit most popular speakers . 150 lbs. load capacity . 47" Base diameter . Only 6.6 lbs. . Black anodized finish.