high quality plastic book screw Material: PE,PVC Colour: Natural Costomized designs are welcome Oem orders are welcome 1 ... product button on the buckle and the child can, with a new product into the POM, PA66 material production; the ... 3. Product Features: environmental protection, aesthetics, light weight, easy to install, push-in installation, portable equipment, stationery button can be reused.4. ...