Isomars Triangular Scale Ruler(Set of 1, White)

Isomars triangular scale(T1) is a stylish rule 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, 1:50, 1:75, 1:100, 1:125, 1:200, 1:250, 1:500, 1:750, 1:1250. Dimensions are in (cm) and (m) for easier working. Scale rulers are used by architects and engineers to calculate dimension in a blue print or building plan without the use of time-consuming and complicated math equations.