Square Circle Ages 10+ First show your audience that the outside square box' is empty, then show them that the plastic inner tube is empty as well. A quick wave of the hand, then reach down inside and produce, silks, streamers, flowers, or your favorite prop! $125.00.......... Strat-O-Sphere AGE 13+ $125.00 Silk Cabby and Frame - Mini AGE 13+ $84.95 Arm Chopper AGE 18+ $74.95 Change Bag AGE 12+ $36.00