Mayline Mobile Parallel Ruling Straightedge with Derlin Rollers

Mayline Mobile Parallel Ruling Straightedge with Derlin Rollers Perfect for engineering and construction applications! Every Mayline parallel ruling straightedge begins with a durable, black phenolic laminate base where Mayline insets a transparent blade for see-through registration and fine line quality. For those who work with a variety of surfaces, Mayline designed a straightedge with retractile, ball-bearing rollers of metal or Delrin built right into its base. They literally float over any surface, whether it's paper or film! The rollers come in chrome-plated brass or plastic. We recommend the plastic rollers for use with drafting films. Above-board mounting hardware included.
Mayline Straightedge W/Delrin