My Slant Tip Eyeliner Brush is indispensable to me.  I use it to create a thicker cat eye liner using creme eyeliner. Or you can make a very thin eyeliner. The slant tip makes it extra easy to line your eyes as it's a good angle to get close to the eyeliner.  I also use it to fill in brows with my Brush on Brow powder.  It belongs in everyone's beauty tool kit.  You'll use it all the time, too. It's a professional tool and the price cannot be beat!  ~ Jill