More from Amazon.com : http://www.amazon.com/gp/product/B005S8TSI4?tag=purrfectcatdi-20
SUNWAYFOTO DT-02D50 Tripod Fluid Panning Tilt Head 50mm Screw Knob Clamp Arca Compatible
Fluid Panning Base with lock
Includes removable 50mm Screw Knob Clamp
Max load 12kg 265 lbs
All Metal knobs For long term durability
Modular design with both top and bottom Arca compatible dovetails
