Buyer beware!
I ordered two packs of these - why not - when the 'price couldn't be beat!'.  However, to make a long story short - these are really junk.  The heads broke off and a small piece of metal came out from somewhere.  In the long run, I wasted my money on these.  Out of the eight brushes, six broke and I threw two away - all within two weeks of opening the packages.  Bad choice.  Potentially dangerous.
Rating: 1 stars