The Gitzo G-2020 Hook. Made in ITALY.
This hook has a 3/8" screw.
This hook that connects to the bottom of the center column of select Gitzo 1- and 2-series standard tripods.
This makes it possible to hang a stabilizing counterweight on your tripod, such as a camera, sand, or water bag.
The hook can be used on the optional Gitzo GT1545T, G1555T and GT2545T tripods only with Gitzo MFR #GS5000C Disk Adapter (M12 to 3/8").