The Bondhus 22199 Hex L-wrench Double Pack is being sold by Amazon AU for $21.03 which means free shipping with prime or with $39 spend. This is a current front page deal on Amazon. You can buy them slightly cheaper from Amazon US but you will need to spend $49 for the free shipping.
These retail for about $45 here in Australia, I have a set and one side is metric and other is SAE. These are good quality the metal is decent and isn't to to soft. These are standard type of Hex keys not the ball type.
Plus made in Merica!
Mod Update 23/1: Available again for $20.80