I created the LAGER Switch about 2010 and published it for the first time in 2014. All the time I have kept it to myself. Originally planned as a technique to solve the problem of a signed, folded card appearing in an hour-glass, it turned out to be a universal technique for any signed folded card in (transparent) box effect. This technique inspired Jon Allen for his great effect, which he put on the market with my permission.In this video, I demonstrate the switch from a clear plastic box, but it could be any clear box or even glass. As mentioned, I used it with a sand-filled hour-glass.
The explanation follows then (with English subtitles). Everything is easy to understand, and you don’t need any gimmicks, which is the reason I still prefer my technique over all the other versions.
Video, streaming, mp4.