The Wondlan Base Plate Systems come in a number of variations. They are designed to be tripod mounted and come with an inbuilt quick release plate and a set of rods to support matte boxes, teleprompters, etc.
The Wondlan PL-40 Big Base Plate has been sturdily constructed and is designed to be used with the heavier camera kits. The height of the base plate can be easily adjusted to line up the camera with other support apparatus. It comes together with 40cm rods.