Isomars triangular scale(T2) is a stylish ruler suitable for architects.
Isomars 30 cm triangular scale is made of white plastic with precision divisions and has color coded sides of red and yellow-1:10,1:20,1:25,1:33.5,1:50,1:75,1:100,1:200,1:250,1:500,1:750 .
Dimensions are in (cm) and (m) for easier working.
Scale rulers are used by architects and engineers to calculate dimension in a blueprint or building plan without the use of time-consuming and complicated math equations.
Ideal for architects, workshop, toolbox and home crafts, card making, modellers and graphic designers.  Isomars is one of the leading manufacturers of Technical Drawing instruments since 1959.