... 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 customizedThickness ... 2 flips (4 color printing )Packagingone pcs in a opp bag , 5000pcs in a cartonOur design of lenticular ruler : lenticular 3D ruler with 2 ...