Features: 8cm/3.1 long quick release plate with universal 1/4 camera screw and non-slip rubber. 3-way photographic head support roll 90, vertical around 180,and horizontal 360 free movement. Damping system, loose/fasten the handle to made adjustment. Non-slip single handle, control the movement easily. With both vertical and horizontal bubble level and a scale on the bottom, ideal for panoramic shooting. Bottom diameter 5.3cm/2.1 , with 3/8 screw hole for mounting on tripod/monopod/slider etc. Made of high quality aluminum alloy, can support up to 5kg/11Lbs.