A tall, clear plastic cylinder is freely shown and three 18 inch silks are let down inside the cylinder as shown. A cover, open at both ends, is then slid down over the cylinder.
When the cover is removed, the silks have changed to three REAL ORANGES which can be tossed to the audience. The cylinder can be shown empty at both ends, the silks having vanished completely. No mirrors are used.
The above is just one possible effect. The Crystal Silk Cylinder is a classic magic prop with many uses!