Case Bound Book printing 1. Eco-friendly material&ink 2. Competitive price 3.100% quality guarantee Jame Printing Factory, with over 13 years of experience. Import about 20s ... ,100gsm)Cardboard (1.5mm, 2mm, etc)Foam for for the cover, etc,pu leatherSizeA4, A5, 8.5x11 inch, etc. depends on ...