1、Promotes Hand Eye Coordination: Fun and easy to use for kids and adults alike, the Spiral Drawing Kit is a great way to promote hand eye coordination, stimulate creativity and exercise detailed manipulation. 2、Simple Operation: These spiral rings templates are easy to operate, just take some glue on the back of the rings gear, then fix the appearance of the gear on the paper, put one of the pinions into the fixed rings gear, and finally place the pen tip in the round hole Start drawing to get a delicate pattern. 3、DIY Painting: Draw hem curves and turn math into beautiful art. With different arrangements and organizations, many patterns can be drawn. 4、ABS Plastic: Spiral graph drawing kit is made of ABS plastic material, which is wear resistant and durable and can be used for a long time. 5、Scope of Application: The Geometric ruler is lightweight and portable, ideal for inventive thinking, shape and color, and gross motor skills. 5 x Black Card Stock4 x Universal Ruler1 x Six Color Pen1 x Kaleidoscope Base1 x Drawing Book1 x Bamboo Stick Item Type: Spirograph Geometric Ruler SetMaterial: Plastic ABS