Parallel Rulers, Parallel Gliders
Rolling parallel rulers are multipurpose drawing instruments that let you measure in inches and centimeters and draw quadrants, squares, circles, angles, crosshatching, and vertical and horizontal parallel lines, quickly and easily. Functions as a compass, horizontal ruler, straightedge, protractor, circle template and angle template, all in one. Parallel gliders combine the functions of a T-square, triangle, transparent straightedge, and protractor in one. One of the most useful and convenient aids you will ever find for drafting, drawing, and nautical applications. Folding parallel rulers provide a fast, accurate method of drawing lines parallel to any reference line. Undercut and beveled blades are constructed from durable, clear plastic that will not warp or shrink.