... printed 1 side or both sidesPrintingoffset printingThickness of the chipboardoptions like 2mm, 2.5mm, 3mm, 3.5mm, 4mm, etcThickness ... of the spineoptions like 30mm, 35mm, 40mm, 45mm, 50mm, 55mm, etcSurface finishgloss ... matte lamination, hot stamping, embossed, UV, etc.Ringsoptions like 2 pcs, 3 pcs, 4 pcs, 20 pcs, 26 ... a lot for your time. paper pocket folder printing