3 Review(s)

Kartual Presents Geometric Ruler, Method of use Choose any external gear, In the two inner circles You can draw different graphics Right hand holding a ball-point pen insert pen perpendicular to the paper, in a certain direction, to draw a beautiful curve pattern. Note that the internal and external tooth should always rely on tightness. Need to change into another or more than two gears, gear was successively on the original painting, constitute a more complex pattern, pay attention to, when to change gear, don't let internal gear to move. Use combination illustration can draw ten million different decorative pattern curve patterns. I use different color painting pen caps, the decorative pattern looks more beautiful. Primary school students with the best intelligence toys can cultivate the habit of correctly. Hands and brain, the development intelligence, the fun. Can easy to quickly draw a complex pattern tens of thousands of fantasy. Can free combination, more play to space. We do not offer color choice, Your order will be sent in colors at random.