Cinevate Pegasus DSLR Slider 39"
The system has four all-terrain adjustable legs for ground movement but if you want certain angles you will need two tripods and if you want to change the angle while your tracking you will want to use a fluid video head.
Comes equipped with a 100mm tripod head ball and a Pegasus 100mm bowl.
Click here for a video example from the makers of the Cinevate. For a more detailed product description, including additional specifications, please visit the manufacturer's website.