Invisible Thread by Yigal Mesika.
An ingenious box designed especially to hold 30 feet of invisible thread safely and stealthily. This piece of magic is as easy to use as it gets. This prop is perfect for several effects, including; -Spider Pen -Floating Bill -Haunted Deck -Animated Glasses Bonus Effect Explained: Floating Dollar Bill (mu)
Invisible Thread by Yigal Mesika