This is a rubber brush mascara (what I usually gravitate towards) and has many bristles with a variety of both short and long. I find that the formula is not too wet or too dry and doesn't seem to clump my lashes together. My usual problems with mascaras are that my lashes seem to clump together or the mascara leaves blobs of mascara on my lashes. I would say that I have many lashes with a decent amount of length. I would not say that I have long lashes and I would not say that I have extremely thick lashes, I feel like I am somewhere in between.
Although this picture is a little out of focus, I think it shows the detail of the mascara brush. There are so many bristles and that is why this mascara does such an excellent job of seperating the lashes. This mascara focuses more on length than volume but does add some volume. I find it also does hold the curl of the lashes pretty well, maybe not as well as a waterproof mascara but still does a good job.
Overall I really love this mascara and I keep going back to it after trying a few others and I remember just how much I love it. It does wonders for my lashes and I reccomend it to anyone who is looking for a mascara to make their lashes look natural,long and defined without any clumps.