The Manfrotto 334B Automatic Monopod is a 3-section monopod that
provides instant single-handed final height adjustment. The upper
section features a grip-action release that allows the top section to be
adjusted 19" up or down instantaneously by squeezing and releasing the
grip-action handle. The lower two sections have a twist lock action, for
additional height adjustment. A perfect monopod for quick-action shots
with minimal setup time.