1) A4(285*320*75mm) / FC(285*340*75mm)
2) Spine: 1.5"/2"/3"
3) Cover: Recycle paper board + 157gsm art paper +100gsm woodfree offset paper
4) Grey board: 1200 gsm to 1700 gsm (1.8mm, 2.0mm, 2.2mm)
5) Print :4 colour printing or Panton colour
6) Finish: Matt or gloss lamination both sides of cover to prevent damp.
7) Inner: Card boards use strong recycled paper to resist deformation
8) Ring Metal: Top quality and durable O/D-Ring Metal are installed to prevent rust problem.