Details: -8.5x11" coloring book -Interior coloring pages are 100lb -Front and back covers are 110lb with a matte laminate -Saddle stitch binding -Coloring book features 20 illustrations - 10 best selling designs and 10 NEW designs -Each design is printing on one sheet to avoid transfering colors to another page. -Designed in Chicago and printed in the US Please note: while these pages are nice and thick and work with markers, some bleed through can happen especially when using alcohol based markers. When coloring with alcohol based markers, we reccommed placing a sheet of paper inbetween the pages to avoid any transfers to the design on the next page.