K&M 24623 BL , Steel tube combination, For use with various base plates, With M20 threaded bolt for screwing in, Integrated M10 threaded bushing allows the attachment of a crossbar or direct mounting of lights, Diameter: 35 mm, Height adjustable from 1400 to 2400 mm, Locking bolt and locking screw, Integrated M10 threaded bush for trusses, Threaded bolt M20, Easily extendable, Weight: 2.96 kg, Colour: Black