Magnetic Whiteboard Ruler - BL061

Having problems in ruling straight lines on whiteboards or blackboards due to the smooth surface of the boards causing the ruler to move? Our ruler is made from extruded plastic (1000 x 60 x 10mm) with a long magnetic strip running down the back. This holds the ruler against the whiteboard firmly and stores it safely in sight ready for use. The bevelled edges prevent pen smudges on the board A useful teaching aid for metric measurement as it clearly shows the connection between cm and mm Supplied as a ruler with handle, screws and screw driver for simple construction