Linex Triangular Scale Rule 1:1 1:20-125 30cm White 311 LXHFeaturing six different scales, the Linex Triangular Scale provides an easier way to draw and create designs with precision. It is precisely engineered for measurements as accurate as possible. Two coloured grooves provide you with an easier way to make sure that you have the right scale selected, preventing mistakes, and it is supplied in a hard plastic storage case for long lasting protection. Perfect for technical drawings Coloured grooves for easy