30 2mm basswood plywood triangular snap-together interlocking panels. Educational with possible constructions with spares: 1 stella octangula; 3 octahedrons; 2 octahedrons and 2 tetrahedrons; 1 octahedrons and 4 tetrahedrons; or 6 tetrahedrons. Party suggestion: paint panels and assemble around string for suspended stunning display.