@Rudi List it with RRP (what you paid), how much you want & include postage. Payment by G & S. Check rules for posting in classies in case I've forgotten anything. The reason for rules is to protect both the buyer & seller. GLWS.
I got the bottle kit for the Drone, no messing with the squonk bottle.
Unless you forget to close the airhole & you're left wondering why your bottle is half full but getting dry hits