Ideal for professional and student mechanical engineers and architects. White, solid plastic. Die-engraved graduations. Colour-coded grooves. The scale is marked with graduations on the following progression: 1:20, 1:25, 1:50, 1:75, 1:100, 1:125. Triangular Scale features engraved graduations and color-coded grooves. Made of white solid plastic. General Information Manufacturer:Staedtler Inc.Manufacturer Part Number:987181BKManufacturer Website Address:http://www.staedtler.comBrand Name:Staedtler MarsProduct Name:Triangular ScaleMarketing Information:Triangular Scale features engraved graduations and color-coded grooves. Made of white solid plastic. Packaged Quantity:1 EachProduct Type:Triangular Scale Product Information Graduations: 1/20 1/25 1/50 1/75 1/100 1/125 Measurement System:MetricFeatures:Engraved Physical Characteristics Color Family:WhiteProduct Color:WhiteProduct Material:Solid Plastic Miscellaneous Additional Information:Mechanical Engineer/ArchitectsRecycled:NoAssembly Required:NoCountry of Origin:Germany Product Numbers: 987 18-1BK 031901950743 STD95074 307900 STD987-18-1BK STD987181BK