The original Spirograph combines the principles of art and mathematics that has delighted kids for generations. The World’s Smallest Spirograph works just like the original, full-sized version: the set comes complete with 6 wheels, 1 ring, 1 spiro track, 2 pens, putty, and a case to store everything. All of the pieces fit inside the pocket-sized case, making for easy on-the-go fun. Case measures 2.75 x 3.75 x 0.50 inches. Recommended for ages 6 and up.