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D7 Sphere with 3-fold symmetry
It's a Truncated Sphere 7-sided die.
Most of the 7-sided dice are based on a pentagonal prism. This one instead is based on an original polyhedron with a 3-fold symmetry.
See
this thread for more informations.
Available Truncated Sphere Dice:
D1,
D3,
D4,
D5,
D6,
D7,
D8,
D9,
D10,
D%,
D11,
D12,
D13,
D14,
D15,
D16,
D17,
D18,
D19,
D20,
D24,
D32,
D33
Alternative shapes:
alt D6 (3-fold),
alt D7 (2-fold),
alt D8,
3-fold D10 (rounded),
3-fold D10 (pointed),
4-fold D10,
5-folded D10 (pointed),
Optimal D11,
alt D24 (snub)
Coming soon: D21,
D22, D23,
D50
Related dice:
Concave D4,
Concave D6,
D3 Shell,
D4 Shell,
D6 Shell,
D8 Shell.