how do I block certain countries from bidding on my items

[tu-ee]

I saw a sellers list "Blocking" countries from bidding on his/her items I want to do that. 

How  do I do it I cannot find any reference to it on eBay

Thanks

tu-ee

[reallynicestamps]

@tu-ee 

Bottom of this page-> Site Map

Scroll down down down

Seller Account -> Block Bidder/Buyer

https://pages.ebay.ca/services/buyandsell/biddermanagement.html