... . eco-friendly materials 4. shortleadtim Board Book Printing: High quality children board book printingPaper material:White cardboard, grey back cardboard ... full color offset printing, panton color.Binding methord:Hard case binding, board book binding, two rounded corners.Finishing effect: ... water-colored ink.Accessories:Magnet, ribbon, EVA foam, plastic tray, sponge, PVC/PET/PP window, discs, small ...