Kupo Baby Ball Head Adapter features a 1.7" diameter base with a 3/8"-16 screw for compatibility with most tripod heads. There are three set screws available to secure the head to the adapter. Also, it offers both a 5/8" interior receptacle and a 1-1/8" exterior diameter that allows users to mount it to either a baby 5/8" spigot or a junior mount receiver.
Video link: https://youtu.be/BpX7XnNPdG0
