Manfrotto 425B Mega Boom, Extension Arm, Extension arm with a maximum length of 360 cm, Hand cranks provide quiet and smooth movements, Sturdy and durable, Sandbag for more stability (included), Suitable for Manfrotto wind-up tripods for exact positioning@+*Technical Specifications:*@+@+, Mounting method: 16 mm / 28 mm mounting, Extract maximum: 320 cm, Extract minimum: 50 cm, Transport length: 220 cm, Load capacity at maximum (Excerpt): 6 kg, Pipe diameter: 55/45 mm, Material: Aluminium, Colour: Black, Weight: 15 kg