This is a great product should you wish for your lashes to have EXTRA volume! I love the brush on the Maybelline The Colossal Go Extreme Black Perfection mascara (what a mouthful!).
The extreme volume double pump wand grabs all the product needed for thick and fabulous lashes and the fact that it doesn't clump is amazing.
I also like the fact that the wand comes to a pointy end making it easy to apply colossal coats to my bottom lashes.