Perfect fit. Comfortable but firm bristles do great job of cleaning teeth while not being too rigid on the gum line. Buying 10 pc reduced the price each significantly.

Works as expected but very pricey. Don't last as long as previous versions.

This will save you big money on great product.

I really like the way these brush heads floss action grabs the teeth for a deep çleaning and in between teeth for a penetrating floss.

Great toothbrush heads for the Oral-B. Love the floss action, it has helped improve gum tissue. I wish these were still available in my Club.

What happened to the colored bands? I can’t even put my old bands on. The super tiny images are useless if you need reading glasses. Bring back the colored bands!!

One very annoying flaw: they brush your teeth fine but do you know what happens when there are holes in the shaft right where you need to form a seal around it with your lips? Spit and toothpaste dribbles down the shaft and onto the handle while you use it. And I see the newer iO models still have this! Did anyone involved in designing this actually use it?

I bought these to add the flossing benefit , but were so stiff I didn't know how there could be any flossing going on. My teeth and gums started bothering me so I Went to the dentist and he said these were too stiff and harmful to teeth and to no longer use. Multipack, expensive, and clearly could not return. Stick to the soft replacement heads and protect your teeth. No way to get a contact/email for Oral B to ask for replacement with regular ones.

Have used this style of brush head for years.

Great for my brushing needs