I know your first reaction, same as mine - This is the little trick came with my first magic set, it
won't fool anybody.
First, the spring is larger and, second, the ring is larger. It has been
made into something that is a piece of apparatus that looks more than what the little spring/ring is
that you get in the magic kits.
Second, the routines are GREAT! This has a great teaching video
that you can download that teaches you great routines and how to present them.
This takes the
little puzzle and turns it into an entertaining magic routine.
Use it table to table as a nice
magical variation from the standard deck of cards.
Do NOT underestimate this as a trick.
You WILL use it!