Although this requires some sleight of hand and mild practice, it is very easy to get the hang of.
The only problem is, a part of the gimmick is made of a soft material and I recommend
keeping it not attached to the rest of it when not in use of performance. Also, be careful when
l***ing the note, as I sometimes used to much pressure and it would shut very tightly closed during
practice (I had to use pliers).
None the less, this is one of my favourite non-card, close
up routines. Definitely recommend.