... or PP 3.Scales:inch,metrics,mm&cm 1.plastic ruler for students2.material:PS,PVC,PP3.dimension:any size4. ... 5.suitable for gift and promotionPlastic straight ruler with in&cm scales for promotionITERMSTRAIGHT RULER MOQ5000PCS MATERIALPLASTIC other details: raw ABS ... Descriptions: plastic straight ruler with 4 scales,colorful printings on,for promotion use.2.Usage: best for student's classes.3.Size, ...