I think Royal Langnikel is a bit of a find for brushes. I love flat edged brushes and they’re quite hard to find, but SO useful for lining the eyes – either tightlining or to nudge into the upper lash-line for a really seamless liner look. You can winkle the flat edge right to the lash roots so the definition is fantastic.
As with all good things, they’re not that easy to track down, but I did find this one on Amazon for £7.19 which is a very good price.  

This is the Amazon link HERE but there are only three left! I’ll advise straight away when I get more stockist news.