At first I didn't get the importance of this tool, but now I can't live without it! It's so useful for getting the details of the brows and lashes right. It's very helpful. Also, the way it folds up into itself keeps it from getting nasty. My other spoolies get bag fuzz all over them so I have to toss them. The spooly is also a bit more precise feeling than the disposable ones. I like that.