Just picked this up on Ebay :

KING MIDAS TWO SIDED RAZOR HONE on eBay.ca (item 300513037134 end time 16-Jan-11 20:00:14 EST)

Does anybody know anything about these? I've heard of them before, but no real details.

Also does anybody know which side is the finer and which side is the coarser.

Looking to use this to touch up/refresh my razors.

Thanks guys