Pyrix puzzle made by Enpros Novelty. This is not a twisty puzzle. It's made up of a number of tetrahedrons that have plastic tethers between each piece. I didn't take it all the way out of it's packaging because it has a tendency to come apart in a long string of tetrahedrons. Fairly rare, I think. The packaging is a bit rough with tape residue and old tape. Be careful opening it up for the aforementioned reasons.
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