The Squeeze Box is an illusion designed and originally performed by André Kole.
A person enters a horizontal box and extends their head out one end and their feet out of the other. A wheel is spun, squeezing both ends of the box towards the middle until the person's head are right next to their feet. The feet move throughout the effect and the person's hands can be shown out the top of the box. The box is stretched back out and the person emerges unharmed.
The Compressed illusion is similar in effect to the squeeze box illusion in that the person's head ends up next to their feet. The compressed illusion is vertical and uses a different method than the Squeeze Box.