I've used different types of toothbrush heads, from official Oral-B brush heads to third-party brush heads. These heads have been the best 3rd party heads to date, they claim to be food safe and have DuPont filament which no other 3rd party heads have. I can't personally verify their material claims, but the bristles feel premium and I can believe they use DuPont materials when comparing them to my previous heads. They are fairly firm but not hard and are noticeably softer than other 3rd party heads I have used which feel well finished on hard parts other than the bristles also so far I have found this to be the best value for money in the Oral-B toothbrush head. The heads feel just as good as the Oral-B heads and are just as effective, albeit significantly less expensive.
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