Particularly suited for use on modern small chart tables;Paralock Plotter features three unique design concepts;Inventive feature of this patented device is the locking knob;Made of sturdy, clear acrylic for maximum chart visibility;Only 7.25 inches long - has all the features of a standard parallel rule but fits in a pocket and is easier to use

• Weems & Plath Marine Navigation ParaLock Plotter

Weems & Plath Marine Navigation ParaLock PlotterWeems & Plath