Online since 2002. Over 3300 puzzles, 2600 worldwide members, and 270,000 messages.

3x3x4 CircleA 3x3x4 with additional circle layers at top and bottom.
3x3x6The first custom made fully functional 3x3x6.
3x3x6 (rectangular pieces)A built-up of the 3x3x4 (Circle) of the same inventor and producer.

Cubic 3x3x6 IIA true cubic 3x3x6 with layers of identical thickness.
Shapeshifting 3x3x6A fully functional 3x3x6. The pieces are deliberately designed to be unproportional.

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Super Brain Spinner

On Sale:
Eastsheen 4x4x4 (Dome)
$18  $12.6

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Magic 16
$12  $8