
I bought these to clean my keyboard at work. I've had them for about 4 months now and have cleaned a lot of keyboards/passed them on to co-workers so they can clean theirs. The bristles are hard and strong but not hard enough to scratch things. I haven't had any problems with the bristles falling out. It was very easy to clean under the keys without having to remove the keys. I unplugged my keyboard from the computer to tap the keyboard on the table to remove dirt while wiping over it. These keyboards are SAD. Now they look almost new. Or at least a few days.

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