~ straightedge Mayline Mobile Parallel Ruling Straightedge 48 in. ~
ruling. ~ This professional quality straightedge runs on a ball bearing pulley system for smooth travel. ~ It features metal rollers that allow the straightedge to glide over your work, and brakes to lock the rule into place for hands free use. ~ The straightedge has a phenolic black base for extra stability and transparent blades for see-through registration. ~ It also comes with a hardware kit and cable. ~ Made in the USA. ~ straightedge; ruling; parallel; mobile; mayline; scalesrulers; drafting; supplies; art;