This is without a doubt a great effect. Mesmerizing to an audience and very easy to do. BUT the
necessary gimmicks come apart and have to be re-glued and a lot of care has to be given to the
re-glueing process. It looks well made but in reality it is not. Once you fix them they will last
forever. I am also concerned about how long the numbers will last on the blocks. They are stick-ons
and eventually with either come off or wear off. We will see.