Mayline Mobile Parallel Ruling Straightedges incorporate Delrin rollers which alternate the full length of the straightedge and allow the straightedge to ride smoothly over the surface of the drawing. 

E-Z Grip cap provides simple, fingertip movement of straightedge.  

Mayline also offers a Standard Parallel Ruling Straightedge that lays flush on the drawing surface, our professionals at Drafting Equipment Warehouse recommend the roller equipped straightedges.

Standard Delivery Time: 1 - 2 Weeks