The Manfrotto 685B NeoTec Monopod Deluxe features the innovative NeoTec rapid opening and closing mechanism. The leg opens up by simply pulling down on it, and automatically locks into any position, with no screws, knobs or levers to tighten. The 685B also sports a safety lever that prevents accidental deployment of the locking release mechanism. To close the monopod, simply activate the safety lever with the small 'pinkie' finger, which then allows the grip action handle to be depressed. The lever is simple to operate while still maintaining the one-handed closing operation. And this innovative mechanism exerts more locking power the heavier the weight pushing down on it from above.