The S-4500 boom stand is solidly built and measures 265mm x 265mm x 25mm for exceptional stability. Similar to the S-4200, it offers an industrial-strength C-clamp base which can be secured to workbenches up to 3 inches thick. It also offers a 535mm long horizontal arm and a pole that is 400mm high (15.74") for optimum vertical and horizontal adjustment. All components are made from precision-machined, solid metal alloys and are built for years of dependable service in the industrial environment. Shipping Weight - 22 lbs. Box size - 24 x 14 x 8 inches.