The 244 Micro Arm with Anti-Rotation from Manfrotto is a 5.9" friction arm with anti-rotation adapters. It features a 3/8" screw on each end and attaches to Manfrotto MT190 or MT055 series tripods via their Easy Link interface to hold accessories. The shape of the anti-rotation adapters allows the equipment to be securely interlocked. Used with the separately available Nano Clamp, for example, the Micro Arm can hold flags, scrims, and reflectors. Other optional attachments include 1/4" and 3/8" adapters, a flash shoe, and 5/8" studs.