1.High Level environmental protection material, No wrinkles, Coated broken, Chromatic aberration 2. Precise pitch, no bad loops & few joints in whole spool; uniform pitch, ensure automaticbinding machine working smoothly, reduce loss, improve efficiency and save cost. 3.The package is firm without looseness; there are no potential safety hazard for wooden wheel and other parts, which ensure the safety of staff. 4. Any color and size can make in spool and accept OEM loops.