Adult coloring books are not just for the kids anymore! Relaxing and creative illustrations invite you to lose yourself in coloring. No art skills needed to personalize these rich, intricate drawings. The designs are developed so you can't color them in wrong. Printed on high quality extra-thick paper that won't bleed through, all pages are pre-perforated for easy removal and display. Full size books for extended relaxation opportunities. Chalk-Style books are approx. 10" x 10". Use with markers, gel pens, watercolors, or colored pencils. Adult coloring books by Design Originals, Prismacolor, Sharpie, and PaperMate.