Review (1/5): Don't waste your money.
I opened it and took the brush out and it was broken off.
Tried to use a pair of tweezer to get it out, and expected a mess but there wasn't a mess, there wasn't even a small amount of black on the tweezers. So essentially I paid for an empty tube with a broken brush. Don't waste your money. I got a refund!
I give zero stars.