The shortest arm at 16,5 cm is also the most powerful. The pivoting pin is threaded with 1/4″ and 3/8″ studs so it can be attached to the top of a video camera to support a small monitor or other video accessory with an exceptional load of 3,5 Kg . Specification: attachment (top): 3/8″ screw attaches by adjustable: 1/4″ screw closed length: 10.3cm color: black load capacity: 3.5kg material: aluminum maximum length: 14.5cm weight: 0.21kg