... Ring Binder2. Cover: Art paper +4C print +glossy/matt lamination.3. Cardstock thickness: 2.0mm,, 2.5mm, 3mm.4. Size: A4,FC ... .5. Spine size: 1",1.5",2",2.5",3", 3.5"6. Ring Spec: 2 rings ... Mr. Memo-Leading Ring Binder and File Folder Manufacturer in Custom Production Mr. Memo Printing Co., Ltd, with the experience of ring binder and folder production for more ...