... : legal size(A4),Letter size(FC size),8.5''*11'',8.5''*13'' or based on custoner's requests. 2.Material: 128 ... /157g art paper +1.5mm,1.8mm,2.0mm,2.5mm,3.0mm thickness chipboard3.Ring binder shape: D ,O with booster ... : 30mm,35mm,40mm,45mm,50mm or produced by special requiements.5.Surface process: gloss or matte varnish, gloss or matte lamination ...