A pole of collapsing was a magical pole.
When a special command word was spoken, this 10-foot-tall (3 meters) pole was able to telescopically collapse into a rod with a length of 1 foot (30 centimeters). The weight of the pole was unchanged. The pole was restored to its original length when the individual spoke another command word. If the individual was in a small space, the pole only lengthened as far the width or height of the space.