Gain a height advantage with the SR-66C Center Column from Sirui, which is compatible with the SR-3004, SR-3204, and SR-3203 tripods. The center column replaces the top plate of the tripod and locks into place with its blue anodized mounting ring. With the center column in place, it unlocks via its twist locks by turning a half turn and extends the 2-stage column's height from 21.5 to 23.6". Even with the column fully extended, the 10x carbon fiber reduces vibrations, which would otherwise cause camera shake. At the top of the column, it features a reversible 1/4"-20 to 3/8"-16 stud, and at the bottom is a counterweight hook to hang a small sandbag or bag for added weight and stability.