Linex dhb3045 a3 student drawing board saver bundle linex dhb3045sb p the a3 student drawing board saver bundle from linex is a cost saving drawing bundle including drawing board set squares ruler compass and eraser p p the cost effective drawing board features straightedge guide slots on four sides graduation with markings for format and paper margin magnetic clamping rail with windows for control of paper margin and extra paper clamp in the lower right corner p linex a3 student