They are collapsible, and you only have to extend as much hose as you need. This kit features bayonet fittings with four prongs for a more secure fit. The fittings are permanently attached to the hose for a no leak experience. Included is a transparent elbow with an easily detachable 4-in-1 adapter for connecting to 3" slip or 3", 3-1/2" and 4-inch NPT threaded sewer connection. The kit also includes a storage cap for each sewer hose end. The hose assemblies compress for storage, and once the 4-in-1 adapter is removed you can store the hose in standard 4" square bumpers.