This is Manfrotto's largest boom in the range. Featuring remote control of pan, tilt and rotation of laminar this is destined to be your studio favorite. A geared telescopic extension makes adjustments a snap. This replaces the Manfrotto 3098. Arm tube diameters: 55.45mm.; attachment: 16mm/28mm.; closed length: 86.61 in.; color: black; column cross- section: round; gravity cast; load capacity at maximum extension: 13.23 lbs.; material: aluminum; maximum extension: 125.98 in.; minimum extension: 19.68 in.; 2 sections; weight: 33.07 lbs.