Details: • Ohuhu Double-Sided Bleedproof Coloring Book for Adult • Designed with bleed-proof, double-sided pages, each book lets you color freely on both sides without worrying about ink bleeding through. • 20 Sheets, Totally 40 Patterns • Bold Line Design for Easier Coloring • Eco-Friendly Warm White Paper • Top Spiral-Bound Design • At 8x10 inches, this book is the ideal size for snapping and sharing on your social media. • Compatible with alcohol markers, water-based markers, and paint markers. • A stress-relieving gift for adults, teens, women.