From artist to students, this ruler is a good helper for your work or study Multifunctional geometric ruler can meet your different needs in daily use and is for measurement Many geometric figures of different shapes are placed on a ruler, which is very to carry This is a geometric drawing ruler that integrates multiple functions, including different designs, which can exercise practical skills and imagination draft ruler can be a students, teachers, artists, and craft lovers A ruler is worth many ordinary rulers, Manufacturer: Obotsnoi