The performer displays a square wooden tube, resting on a tray. Besides the open top and bottom of the tube, there are two cut out doors on the front and back of the tube. The tube is lifted off the tray, and the doors opened, allowing the audience to see right through…it is completely empty. The tube is replaced on the tray, and a handkerchief with a picture of a glass of liquid dropped into the tube. After a magic gesture the performer removes the handkerchief, and opens it. The picture of the glass of liquid has vanished and there is now a large cut out in the handkerchief in place of the picture. The performer now reaches into the tube and produces a large glass of liquid, (milk, Coke etc.), which can be handed over to a spectator to drink. Supplied complete with tube, glass, and handkerchiefs.