The 3706 is a replacement, retractable weight hook for any XC-M 522 aluminum or carbon fiber tripod. It connects to the bottom of the center column and allows you to attach additional weight to the tripod to improve its stability.
The 3706 is also a replacement hook for the 4021 XC-M 522 Tilting Column Adapter. With the Tilting Column Adapter installed you can add weight to the bottom of the adapter as well as to the bottom of the column. This improves the overall stability of the XC-M522 tripod while also counterbalancing your camera rig.
Finally, the 3706 also works with the 3517 XC-M 522 aluminum ground level adapter and the 3524 XC-M 522 carbon fiber ground level adapter.
