This has a 3/8"-16 mount on top and bottom

The Kessler Low Profile Ball Head is an easy to use, ultra-low profile ball head system with a heavy duty weight capacity. The strong locking ball has 62 degrees of total adjustability. It features a 3/8”-16 thread stud on the top and bottom providing easy mounting to all the Kessler sliders and Shuttle Pods, without the need for an adapter. The modular design allows the Low Profile head to be used on other Kessler mounting accessories such as the Cheese Plate, Multi-Angle Mounting Plate (for mounting a camera in multiple angle configurations including 90° for vertical slider moves), or the Kessler Kwik Release System. Other mounting accessories that accept a standard 3/8”-16 threaded stud are also compatible.