... Paper Rind Binder/ File Folder/ O-Ring Binder/ D-Ring Binder1. Eco-friendly, weather and tear resistant ,durable2 ... delivery, great service and solid reputation. Detailed Product Description 1. Paper Ring Binder2. Cover: Art paper +4C print ... 3mm.4. Size: A4,FC.5. Spine size: 1",1.5",2",2.5",3", 3.5"6. Ring ... , 4 rings, O-ring or D-ring are available. Mr. Memo Printing Co., Ltd. with the experience of ...