Ruler 30cm transparent BM.5826-30 plastic BUROMAX – has a clear millimeter scale divisions! Great for office, school and home! Made of polystyrene, resistant to deformations. Special round hole in the case allows you to hold the ruler suspended vertically, so that it does not take up much space when stored. Available in 4 sizes. Packed in individual packaging. A line of BUROMAX – You will get the accuracy!