Fairywill Electric Toothbrush Head x 4 with Soft Bristle Solely Compatible for FW-507,FW-508, FW551, FW2011, FW917,FW959,FW515 Series Toothbrush

I had a batch of the original/previous model of replacement heads and they lasted until recently. Had no problems screwing and unscrewing those heads on the toothbrush. I only recently opened the box with the newer version of replacement heads, having ordered them months ago, and was surprised it didn't fit easily. I had to push down really hard to screw the head and now it's completely stuck. Two of us are using this toothbrush and we are supposed to switch the heads every time. Clearly now that's impossible. Great stuff..

The style of these heads has changed recently and the new ones no longer fit my series 507 toothbrush.The old style which use to have the coloured bands at the bottom were fine and I purchased replacements in the past with no issue.Contacted the seller directly to explain this but they were completely unhelpful so will be going direct to Amazon customer services instead.

Bought these as replacements for our familys Fairywill toothbrushes. I checked the product code to ensure we were buying suitable heads, and they do fit but the fit is such that the head is not inline with the buttons, therefore to turn the brush on and off, and to angle the toothbrush in your mouth you have to hold the brush at an angle. This means it is not as comfortable in your hand. i have kind of got used to it now having used the new head for a while. I cannot fault the price, but the fit is annoying, but at least they work.

bought these as spares along with the tooth brush i bought, don't envisage any problems with them!!To Add to that, the tooth brush is now a little over 2 years old, and still going strong. The replacement brushes work as expected. The latest order was delivered way before the due date, one pack for me one pack for my sister, I bought her a Fairywill toothbrush for christmas last year, she loves it, and likes the replacement brushes as well.They fit, they work, they arrived before they were due, not a lot more to say is there!!!

It is very difficult to install on 508 model. We are two people using the toothbrush so we are constantly switching the heads but now they are very difficult to put. We purchased the toothbrush less than a year ago and now we can no longer use it due to lack of replacement heads. We are deeply disappointed as we really liked this product

Good toothbrush. Previously had brand leading named toothbrushes and this works just as good. Less robust but for the price it's an excellent buy.

Great value when you consider that there is no need to buy anymore toothbrushes when you can just go out and pick up the additional heads for the electronic one. I'm happy with the product and the additional heads will keep me using it even further.

Holy smoke from order to delivery was so fastThe product perfect as describedIs amazon trying to take over the world with its incredible products and services?Oh yes it already has faultless 🙏👌👍