These are genuine toothbrush heads that fit the original and in my opinion best sonicare toothbrush. I am so annoyed I left my sonicare toothbrush in a hotel room abroad as I forgot to pack it when I left so I have 3 of these that I cannot use. 2 are in an unopened pack and another 1 that has never been used but not in a sealed pack. I also have the charger too if you're interested.
eBay