Longlife - 1m/40in,This white virtually unbreakable wooden rule has tipped ends and one bevelled edge to reduce measuring error. The 38mm wide rule has a metric scale on one side and an imperial scale on the reverse side.,Wooden - 1m/39in,Features brass hinges with mild steel pins. The ends are brass tipped. The rule is graduated 1//8 in or 1mm and has square edges.