A must-have in any drafting kit, this set from Isomars includes two professional-quality set squares in 8” & 10”, ideal for students, hobbyists & professionals alike. Offering an unobstructed view of your work, their robust 2.9mm transparent plastic construction includes an inking edge ideal for fineliners, markers, cutters or tools. Marked with both centimetres & inches, their dual-sided design simplifies your work & ensures you can easily switch between measurement systems as needed.