Alvin's Paral-Liner is a mobile parallel straightedge that operates without friction through the floating action of nylon rollers mounted on the blade. Rollers retract at a touch, securing the blade for accurate drawing.
Paral-Liner features rigid phenolic construction with a black satin finish. Elevated Plexiglas edges eliminate inking smears. It has full-length finger lifts for easy handling, and side tension guides to eliminate side travel. It comes with all mounting hardware and installation instructions.