On the level
The built-in level above the legs lets you know when the base is level. Another on the top of the camera plate lets you know when the camera is level. The rubber feet adjust to help you achieve the perfect position.
Pan Head :
With "Three way Panhead" You can quickly remove the plate and its bubble level, with the key in the lock on the column core and buffer foot you will get an amazing stability on the ground is not good enough.