rotring Centro Geometry Set

rotring Centro Geometry Set for drawing. Amazing value great-quality set of drawing instruments includes 30cm ruler with bevelled and tracing edges; a 45 degree square with tracing edges and 13cm scale; a 30/60 degree set square with tracing edges and an 18cm scale; plus 180 degree protractor with contrary scales, centering point, bevelled edges and a 10cm scale. All in high-quality clear crystal-clear dimensionally-stable plastic.