... designs and requirements are welcome4. File folder use for office, school, market and promotion.5. Excellent printing, best ... delivery, great service and solid reputation. Detailed Product Description 1. Paper Ring Binder2. Cover: Art paper +4C ... 3mm.4. Size: A4,FC.5. Spine size: 1",1.5",2",2.5",3", 3.5"6. ... rings, O-ring or D-ring are available. Mr. Memo Printing Co., Ltd. with the experience of ring ...