Dongguan Yi Gao Binding Material Co., Ltd. is a professional manufacturer for plastic single binders, double loop wires (YO), iron single wires, and calendar hangers. Our products are applied to the notebooks, photo albums, and calendars. Our products have passed the strict SGS, FDA, DINP and DEHP certificates. With the advanced facilities and experienced managers, our products have high quality and reasonable price. All colors are available for your selection. We can also make customized products according to customers' demands.