The AH630 from AXRTEC is a professional fluid head which compatible with 75mm bowl size tripod. It supports a payload of up to 17.6lbs. Thanks to it's combined system of 2+0 steps of counterbalance and 3+0 steps for both pan&tilt drag, you can earn a diverse shooting experience. Separate pan/tilt locks and tension knobs facilitate your precise operation. An included universal sliding camera plate comes with 1/4” & 3/8" screw for most DSLR cameras. There are two rosette pan bar mounts, so an attached telescopic pan bar can be installed on the right or left or just for attaching dual handles.