Each side of this tetrahedron is formed from four regular triangles and they are divided to two rectangular triangles. This is four piece interlocking puzzle - not coordinated motion. Four pieces which are two pairs of mirror images of each other. Waxed and polished.
- Size: 64 mm
- Pieces: 4
- Difficulty: 4
- Wood: walnut maple cherry oak
- Type: Interlocking