by Markus T. Müller
The cubes are designed to be assembled once. The open edges may be glued so that the cubes are closed. Re-opening the cubes may destroy the clips.
The cubes can be turned in those directions that are allowed by the letters, vertically and/or horizontally. If the letters stay up side down or in a 90° angle after a turn, then this transition or reaction normally is not possible directly.
The Student-Box contains 16 cubes
Markus T. Müller
Im Baumgarten 5