Features: *High-Quality Material: The painting ruler set is made of high-quality material, which is wear-resistant and durable, not easily damageds and can be used for a long time.*Skills training: This drawing ruler set can exercise children's logical thinking ability, cultivate children's brain power, and promote children's hand-eye coordination.*Multi-functional: This set includes multiple rulers and gear teeth. After combining the rulers and gear inlays, you can draw a variety of patterns and stimulate children's imagination.*Drawing Skill Development: This drawing ruler set can help students develop their manual skills and imagination to draw different designs.*Perfect gift: Children's painting ruler set is the best holiday gift for your children on Christmas, New Year, birthday, Thanksgiving, etc. It is also an ideal choice for you and your children to participate in parent-child activities. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material: plasticApplicable age: 8 years old and abovePacking Size: 22*3*3 1.5cmThe set includes: 2 pieces of rings gears; 15 pieces of wheel gears; 1 piece of rack; 4 pieces of special-shaped wheel gears; 3 paint brushes; a piece of glue; 1 small stacks of white paper; and a pattern guide books Include:1 set x Drawing Ruler Set