First one boomerang, and then the other, appears to be the longest. When the magician wishes, the red boomerang can be shown to be the shorter by placing one boomerang on top of the other. This latter feature is not possible with the traditional boomerang trick, which depends solely on an optical illusion and the presentation skills of the magician. The boomerangs are stamped PL | PAT. PEND for the Petrie-Lewis Manufacturing Company, Newhaven, Connecticut, USA.