These Coloring Pages offers something new for all ! Now with your smartphone or tablet your can relieve stress in new unique way. Blow some steam with this awesome coloring book for adults. Features include: * Zoom Capability : A perfectionist dream tool!!! Get up close and personal with your art for the best touch. * Color Picker : Over thousands of colors to choose from for the most unique finish. * Pen/Brush : The pen option allows for immediate color fills while the brush gives color depth variation for unique look. * Eraser : Manually clear any mistake you make in an instant * Redo/Undo : Never fret making a mistake. Redo and undo options leaves room for error to get the desired look intended. * Page Clear : Just want a new start? Page clear offers a clean slate instantly * Sizing Tool : Adjust the size of brush/pen, and eraser tools to get the touch you need at the time