Drawing board Geo Board A3. Material: Impact resistant plastic. Colour: White. Permanent sliding profile of the drawing rail. L-System also allows drawing above the rail in the lower sheet area. Anti-slip protection cast in on the underside of the panel. Use for paper formats: A3. Design of the contents with regard to the main equipment parts: Ergonomically shaped handle with stop-and-go mechanism and freewheel switching, additional rail locking on A3, magnetic clamping rail with viewing windows, integrated compass pick-up section for quick adjustment of radii