30cm Plastic Triangular Scale Ruler
Color-coded to ensure quick and accurate selection of the desired scale
Three sides with six different scales which include 1:20, 1:25, 1:50, 1:75. 1:100...
30cm Stainless Steel Rule, precision steel rules, rustles. Accurately divided. Hole for hanging up purpose. Marked in cm, mm and 1/2mm on one side and inches, 8ths, 16ths, 32nds and 64ths on opposite...