... good quality and promotional gifts for students promotional straight ruler 1. Size: 159*30MM 2. body color ... available. Of course, Customized size, Logo,printing,shape are welcome to us. We has no ... Certification: EN71 standard.7. The plastic straight ruler is good for draw line straightly and good ... more, for stationery, we are not only producing ruler, but we also can manufacture erasers, pencil box ...