hypotrochoid is the mathematical term for a line traced by a fixed
point in a circle (your pen) which is rotated around the inside of
a larger circle. these beautiful flowing curves have fascinated
mathematicians for centuries. different points within the small circle
produce wildly different patterns. a classic and absorbing drawing
set, easy and fun to use. 11 piece set in a tin with instructions.
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Delivery Time:
1-2 weeks (Quick! Overnight if Needed)
