Manfrotto 504HD,535K Video Tripod Kit with 504HD Head and 535 Carbon Fiber Tripod (Black) 4-step counterbalance system ensures a quick set-up with optimal balance Ball Bearing drag system for precise, smooth movements High rigidity structure delivers maximum response and strength Ergonomic controls for easy use in all conditions.Carbon fiber legs for lightness and rigidity Inbuilt 75mm levelling half ball