The Manfrotto 425B Mega Boom is the largest boom in the Manfrotto line and carries up to 30kg - unbeatable! Movements - including pan, tilt and rotation, as well as the telescopic extension of the boom arm are controlled by smooth-operating geared crank handles. Best used on a Wind-Up tripod. Supplied with counterweight, bolt and safety-cable. Extendable from 220cm to 320cm.