Manfrotto 509HD Video Head with Fast Twin Leg Tripod and 2-in-1 SpreaderThe video system includes the Manfrotto 509 Professional Fluid Video Head and the 645 Fast Twin Tripod in aluminum. The 509HD fluid head combines ergonomic design features with professional performance. To help you obtain incredibly smooth camera movements and great footage, the 509HD has a variable fluid drag and a fast, precise, 4 step counterbalance system that makes it suitable for a wide range of semi professional and professional camera setups.