It's thin brush makes it easy for you to wing out your eyeliner even if you are a beginner. (chicglamstyle.com)
They don't have any noticeable scent and come with a long, thin brush of which I, just to put it out there, am absolutely no fan. (lindalibraloca.com)
It is necessary that you use a bottle brush for the cleaning process, which has a large brush at one end and small and thin brush at the other. (intelligentmother.com)