A hose for connecting to the Hebewunder Castor. Use to fill the Hebewunder Castor with air to lift your piece of scenery so it will not move. Deflate to allow the scenery to be moved about freely. It is recommended that a tube cutter is used to cut the hose to ensure that the cut is made cleanly at right angles to the tube axis otherwise the tube may not connect properly to the valve, causing air to leak out.