Lock your Cooler King at the disc and then stick it in your pocket when you’re riding.
We love these Solex locks as they are virtually unpickable.
Go for a simple, discrete lock on black or silver or choose one that says “STAY AWAY” in yellow, red, blue or even pink, that stops some idiot rolling your prized possession away. It’s a good back up for a cable lock too and worth every penny if it stops your King being moved without your consent.