... size is OK! we are a professional paper products factory! coloring book sise:21.2*14.3cm cover:200gsm coated duplex ... with white back,4 color printing,glossy surface inner:70gsm wood free paper,8sheets,1×1C printing bind:saddle stitched package ... products are spiral notebooks, school exercise books, haed cover notebooks, coloring books and some other paper products. FOLLOW customer's artwork ...