The Genie Tube is an excellent utility prop. A tube is held up to your eye so the audience can see clear through it.
Going one step further, you open the hinged tube to prove, beyond a shadow of a doubt that it is empty. Close up the tube, say a magic word, and begin to produce a large load of silks!
But wait, there's more...this has a New twist on the old Genie tube,
This One Can Be Handed Out!
Bet you can't do that with your current model!
9 inches tall, 3.5 inches square