This is a routine that you can perform over and over to the same audience and fool them every time. Look away and ask your spectator to choose a colored disk. Without holding the pieces of the trick up for inspection you'll be able to correctly name the colored disk. Every time.
Designed by Rob Stiff Magic Makers
Container: 3cm tall x 2.8cm diameter (1.18" tall x 1.10" diameter)
Disks: .5cm tall x 1.6cm diameter (.2" tall x .63" diameter)
Now Watch Bess & Harry Demo This Illusion: