Jakar Ruler Scale Rule 30cm (1:5, 1:50, 1:20, 1:200, 1:1, 1:100. 1:250, 1:2500)

30cm Scale rule, non-inflammable, durable white acrylic material. Boxwood coloured centre oval section. BS1347. Part 3 1:5, 1:50, 1:20, 1:200, 1:1, 1:100. 1:250, 1:2500