The CRB Deflection gives builders the ability to conduct expert "side by side" comparison of rod blanks to locate even the most subtle differences in power or action. Whether you are trying to match a new build to your favorite old rod or trying to fine tune the perfect rod for your next build the CRB-DFT will help take your craft up a notch. High Strength Polymer mounting plate, with molded vertical adjustment rails. Adjustable Cam Levers allow blanks with different diameters or tapers to be leveled easily, and are tightened in place with the included PVC Plastic Adjustment Knobs. Holds blanks up to 1" Diameter Also and effective tool for doing static deflections while customizing guide layouts.