Here we have Avon's concealer brush. It has nylon bristles and is $5.99CA. Sadly, mine came with a scratch on the handle (and it drives me crazy everytime I look at it).
Here's what Avon says about this brush in the campaign book..
"Firm nylon bristles for flawless coverage. Use the flat side for overall even blending and the tapered point for precise spot application."
I think that it's a pretty decent little brush.. I only like to use it with liquids, though. Cream or stick concealer and this brush do not go together well. So, I'll use this brush when I double up my liquid foundation as concealer.
So.. for the most part I like it.