Description: Feature with scale ruler 1:10 1:15 1:20 1:25 1:30 1:33 1:40 1:50 1:75 1:125.fit for plan drawers, architects, workshop, toolbox, home crafts, hobbyists, joiners, cabinet makers, graphic designers, etc. Specifications:Material: PlasticOverall Size: 198x28mm (L*W*H) Package Content: 1 x Scale Ruler