3D ruler Material : PP ,PET ,PVC Thickness: 0.18mm- ... are specialized in the manufacturing 3D ruler, 3D lenticular ruler,3D folded ruler,Flexional ruler,Plastic ruler etc. The product sells well domestic ... and negotiate business!The festures of our 3D lenticular Ruler:Size 21*3cm ,16*4cm,20*3cm or ... , 5000pcs in a cartonOur design of lenticular ruler : lenticular 3D ruler with 2 flips