The 055XSCC shorter column improves the tripods positioning flexibility. If you need towork with legs set at the third angle of inclination (about 60°) but still need to be able to move the camera up and down to achieve perfect adjust your shot perfectly, this shorter column replaces the one supplied with the tripod. Compatible with MT055CXPRO3, MT055CXPRO4, MT055XPRO3