This is a Manfrotto 025TM Mini Super Boom with Column Stand. The black painted boom has crank handles for swing and tilt of your mounted Baby fixture. It extends to a maximum of 4.6' (1.4 m) and has an adjustable 15 lb (6.8kg) counterweight.
The Wheeled Stand Base is suitable for mounting light or heavy-weighted fixtures close to the floor or ground. It has a Junior (1-1/8") female receptor for the included column or larger fixtures and a Baby (5/8") stud for smaller fixtures. It folds for easy transport and storage.