A hollow sphere with tetrahedral axis system that allows 60°-turns.

• Inventor: Yong Xue Dong
• Mechanism: Doctrinaire axis system with fractional angles (corner turning hexahedron)
• Patents: Unknown
• Producer: Custom
• Year: 2013
• Original Price: $0.00 USD
• Current Price: No Data

This puzzle has an unusual axis system. It allows four rotations aligned in a tetrahedral fashion. Compared to a traditional Pyraminx it allows 60°-turns.
Compared with Super Pyraminx (from the same inventor) this puzzle has a spherical shape and is hollow.

The inventor designed it to be hollowed which makes this puzzle even more spectacular.

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