Teaching plastic ruler sets plastic education instruments for teachers size: 50cm /60cm /100cm color: yellow Teaching plastic ruler set Details of sets :triangle set, teaching compasses,both 50cm length ,thickness:0.7cmWith handle to hold ,easy to useOEM is welcomed,different color can be made .All comforms EN71,ASTM standardsPacking:1pc/polybag, 48pcs/ carton,per carton approx.0.0045cbm