Hypotrocoid Art Set
Hypotrochoids are mathematical curves traced by a point in a circle (your pen) rolling around the inside of a bigger circle. These curves have been studied by mathematicians for centuries. Hypotrochoid formulas are complicated, but creating hypotrochoid art is easy and fun!
Set inlcudes 3 pens in red, blue and green, assorted sizes of hypotrochoid circles (6), outer tracing circle. Recommended for ages 6 and up