3D Coloring Book for Adults with Black and White Backgrounds - Black Midnight - Mandala Volume 4. Perfect for stress relief and relaxation. The newly created artwork can enhance the decor of any room when framed. Tip: Use bright and vivid colors. Key Features: - 62 pages, 20.5 x 20.5 cm - Gray shading for an even more beautiful 3D look - Unique and individual - Stunning designs that are simply fun - Reduced bleed-through with single-sided printed coloring pages - Neutral backs - Individual pages can be easily torn out and framed, for example - Perfect gift idea.