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A variant of the Masterball in shape of the namegiving solid.
For this puzzle its inventor designed extensions, printed them on his own 3D-printer and glued them onto a mass produced masterball.
Edge length (of a trapezohedron): 35 mm
Weight: 300 grams
Thank you to the following people for their assistance in helping collect the information on this page: Andreas Nortmann, Lawrence Cuthbert.
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