Super Color Changing Disks by Tricks Co. Ltd.

Examine both sides of 3 black records. Take a red silk out of the vest pocket and wave it in front of the records.Instantly one of the records has changed to red, which is the color of the silk. Using this red record wave it in front of the 2nd record and the record changes to yellow. The last record changes to green in a flash- this is real visual changing. The mechanics are very simple and the effect is amazing.