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Ten overlapping wheels. Each with six segments.
This puzzle was sold under at least three different names:
2002: "Mad Triad" from Playroom Entertainment (images 6-7)
2000: "Twisting Tri-Side Puzzle" from DAH YANG TOY (images 9-10)
2003: "Puzzle Wheels" from Leading Edge (images 11-13)
Mad Triad is the name under which it is best known today.
Size (top to base): 195 mm
Weight: 315 grams
Thank you to the following people for their assistance in helping collect the information on this page: Sandy, Adam.
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