Feature:1. Multiple Patterns: After the combination of multiple rulers, wheel teeth inlay, you can draw a variety of patterns to stimulate the child's imagination.2. Aesthetic Principle: The ruler is based on the aesthetic principle of symmetrically and circularity, full of rich vintage style.3. Hand Eye Coordination: Exercise children's logical thinking ability, cultivate children's brain skills, and promote children's senses such as hand eye coordination.4. Perfect Gift: Kid painting ruler kit is an ideal choice for you and your children to participate in parent child activities. It is also the best holiday gift for your children.5. Plastic Material: Drawing kit is made of plastic material, wear resistant and durable, can be used for a long time.Specification:Item Type: Spiral Drawing Ruler SetMaterial: PlasticApplicable Age: 8 Years Old and Above.Package List:21 x Gear1 x Rack3 x Color Pen1 x Adhesive1 x Stack of White Paper1 x User Manual