100mm Half Ball. Need to mount a flat-mount fluid head or sliders to a 100mm bowl tripod? You’ve come to the right place! The Kessler 100mm Ball Kit also features a 75mm fixed-ring mount, letting you use it with 75mm bowl tripods as well.

3/8" Stud. The 3/8" stud makes this ball compatible with most heavy-duty video tripods.