I was dismayed at how much the branded heads were for my toothbrush so had a look for some alternatives and came across these and they were such a good price so I thought it was worth trying them. I’m so glad I did as they are just as good as the originals and the pack will last ages. I’d say the bristles are medium to soft, which suits me as I find harder bristles tend to make my gums bleed a little. Great alternative and very economical.