Two metal looking tubes shown empty with one having a red band painted around its center and the other having a green band. A red silk placed into the tube with the red band and a green silk into the green banded tube. Magician takes one tube in each hand and commands the silks to change places. The red silk is blown from the green tube and the green silk blown from the red tube with no clue as to how this was accomplished.
Warren built these mechanical tubes and they work well and also included are the red silk and the green one as only these two are used with no duplicates! Includes illustrated instructions. Condition very fine.