Century Accessory Adjustable Magnesium Aluminum Alloy Tripod Monopod w/ Ball Head For DSLR Camera Travel Dual hydraulic Level PTZ, three the knobs design PTZ Pull-out button angling adjustment, ensuring single adjust of each leg Typical regulating design of elevator, offering the different damping effect depends on the weight of your camera 4-section center column, realizing your lowest angle shooting Quick release leg locking, giving a more convenient leg handling