FineArt triangular scale(TDIN) is a stylish rule suitable for architects. FineArt 30 cm triangular scale is made of white plastic with precision divisions and has color coded sides of red and yellow-5:1,2:1,1:1,1:2,1:5,1:10,1:20,1:50,1:100,1:500. 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.