1 Pcs Plastic Spirograph Ruler Creative Transparent Changeable Ruler Multi Functional Drawing Plastic Ruler for Children

Features:Create fascinating patterns with this classic art tool that has been loved for generations.Traces out hypotrochoid curves turning math into beautiful art.Through different arrange and organization,You can draw a lot of pattern.Put one the the gears in the big circle, then position your pen tip in one of the little hole of the gear, and draw along the gear teeth.Then you can easily draw a lot of amazing patterns. Using colorful pens will be a lot more fun.Makes learning math fun.This is a fun toy and great gift for children.Specification:Size(L*W): approx.20.5x10cmMaterial: plasticColor: color randomPackage Included:1 x Plastic Spirograph RulerNotice1. Please allow 1-3cm error due to manual measurement.2. Pls make sure you do not mind before you bid .3. The colors may have different as the difference display,pls understand.