I am extremely disappointed with this purchase. You see, the item is actually completely different:
1) The bristles are hard, too hard to trust it to touch my guitars
2) Although hard, the bristles are also very distant between each other and don't seem to be able to grab the dust, but rather spread it around
This looks like something I'd use to soften hardened stains with. This is false advertising and the item is completely useless for a guitar.