These are in unused condition (in fact the gimmicks inside the boards are still taped for transport), with English instructions!
One of the larger Tricks Co. effects. This is a great vintage effect that is a real fooler! Throughout the routine the drinks from two glasses on two boards are vanishing and changing color. In the end you actually pour out the colored drinks from the panels into un-gimmicked glasses and the glasses on the panels are shown empty!
Interesting mechanical solution built into the Plastic boards!