Hotlock safari 6 help.

[River98]

Hi all. Anyone used one of these before. I thought they locked interesting and have picked one up cheap but have no idea how it works. Any help would be greatly appreciated.

It's like this one on eBay but doesn't have any pots in it.

http://pages.ebay.com/link/?nav=item.view&id=141600276770&alt=web

Thanks all.