Best of oral b. The io series is the best yet. If you are still using the old oral b electric toothbrushes you need to upgrade to the io series! You can feel your teeth cleaner with this new brush heads compared to the old model brush heads

I love this toothbrush. Been wanting a nice electric toothbrush for a long time. This was affordable and works great. My teeth feel so much better than when using a regular battery powered one you get at the drug store.

I like that they are in individual sealed package. They are the exact replacement brush I need.

Good price when they are on instant saving but they don't seem to hold up too well it seems like they just manage to last about 3 weeks

Perfect fit. Lets you know when to change it

These are expensive so olny but when on sale. Sam's has best price. They also don't last as long as the ones for the old model.

While these are a comparatively good price, I find the brushes reach the end of their expected useful life much quicker than what Oral-B says should be average. In less than a month, the blue color is completely gone, the bristles are bending outward and cutting the gums. I wonder if these are manufactured exclusively for Sam’s Club at a different quality level than those sold by Oral-B on its website or in other retail stores in single or two packs.

Oral-B suggests 2 minutes of brushing. With that in mind, I get almost 1 month only from the replacement brushes. Disappointed!

I only bought the heads so I don't have to replace the actual toothbrush. But these toothbrushes are not very good, the battery dies easy, I've already had to get one replaced. Do not recommend.

They don’t fit my toothbrush. They have a conical shape at the bottom and my are round with a small plastic o-ring at the bottom. There was no differentiation on the packages. Because the packaging was childproof, I destroyed it during the opening. I went back next week trying to find the right brush. No one knew anything.