... quality,competitive price and Scales:inch,metrics,mm&cm 1.plastic ruler for students2.material:PS,PVC or PP3.dimension:any ... ok4.MOQ:5,000pcs 5.suitable for gift and promotionPlastic straight ruler with in&cm scales for promotionITERMSTRAIGHT or triangular RULER ... no danger when be used by the children.1.Descriptions: plastic straight ruler with 4 scales,colorful printings on,for promotion use ...