The set comes with 24 translucent stencils, about the size of a 4x6 index card.  They are made of thick plastic that will stand up with a lot of use.  There are a few stencils that you look at and wonder for a few seconds just what exactly it is, like the cornucopia, but fortunately these are rare.  Most of the stencils are great and easily recognizable.  The designs are even labeled with a description in case you have any problems figuring them out right away.