Starting with blocks of wood and rubber bands, Rubik set out to create a structure which would allow the individual pieces to move without the whole structure falling apart. Rubik originally used wood for the block because of the convenience of a workshop at the university and because he viewed wood as a simple material to work with that did not require sophisticated machinery. Rubik made the original prototypes of his cube by hand, cutting the wood, boring the holes and using elastic bands to hold the contraption together.