This coloring book for Kids from Rays of Ink is ideal for 4-9 years old kids and has 30 unique handmade animal doodle designs. It provides hours of fun, educates kids about colors, improves hand-eye coordination and enhances fine motor skills of kids. These beautiful designs are printed single-sided and range in complexity. The pages are ideal for Sketch Pens, Pencil Colors, Ink Pens, Crayons etc.