In order to protect your cat from daring and reckless ventures this pole set is a practical solution the anchor poles can be set from wall to wall without drilling or screws you can take the set down any time without any problems and use it again later this is how it works first put all the poles together in a pile and order them according to approximate size attach the short poles to either end and draw the rounded rods through the thread if you use all three pole parts you can span a