... price, negotiable discount 2.100%quality&delivery service Eco-friendly Children's Coloring BookDescription: 1, Size/artwork: Customized. 2, material: Gray cardboard ... , CIS/C2S coated art paper, special paper, magnetic flap, foam, 3, printing: Full color, four color, 4C+4C. 4, finishing: Center sewn, ... hot stamping, aqueous varnishing, die-cutting, etc.Machines: Eco-friendly Children's Coloring Book