3D plastic ruler ! 1,Material: eco-friendly PET 2,Effect :3D depth,flip, ... ,zoom and morph 3:Customed design accepted 3 D lenticular Ruler !Products information ; MaterialPET(Main material ) ,PPThicknessPET/161LPI/0.3mm,PET ... holder, christmas card ,gifts card ,book cover ,post card ............. Plastic Ruler with 3D Printing for Promotional Events