Replacement Toothbrush Heads Compatible with Oral B Electric Toothbrushes, 4 Count, Small Round Head for Pro Series, Refills for Braun Model 3756 3757 3744 3765 4729 4731

Although these do fit my electric tooth brush, and work perfectly for the most part, If you don't keep the brush away from the inside of you lips, it will catch your lips and pinch them. I have drawn blood brushing my teeth. I will stay away from the generic replacements in the future.

I've been using authentic Oral-B tooth brush heads for years and decided to try these to save some money. As soon as I opened the package I noticed the difference in quality. The bristles are different. They look and feel different. Before even using it the bristles were kind of slightly bent and flaring out, not even straight. I'm now back on amazon to write a review for these heads, throw them in the trash and go buy some authentic heads. Unfortunately, my return window has already expired.I uploaded two photos of my (used) Oral B head on the left and this (new) off brand head on the right. You can see the Oral B head has bristles that look more tidy, the one on the right has bristles that look cheap and a little out of control.Also, these heads do not fit my Oral-B Pro 1000 model. The inside is a different shape and will not snap on.

Fit my Brain Oral B 1500 perfectly. So glad they make these toothbrush heads with various colored rims so we can tell whose belongs to who. I will be back to buy more from this seller!

I thought these were great at first , but then I my husband and I realized that these toothbrushes pinch your lip as you brush your teeth. The rotating head is flawed

These toothbrush replacements are a little harder to put on the toothbrush and they do seam to wear out faster. But they are cheaper so I guess you get what you paid for.

I purchased these generic replacement toothbrush heads for my Oral-B brush, and they have worked out very well. They clean my teeth just like the original product, and so far they are showing no signs of wearing out any earlier than any other brand. I will definitely be purchasing these again.

The product fits easily onto my Oral B unit. The quality of the product seems to be equal to the OEM. Since the replacements are for my personal use, 4 pack of replacements was exactly what I needed for a reasonable price.

These replacement toothbrush heads are Chinese fraud. The first time tried to use one it fell apart in my mouth. Amazon should not be selling junk replacement parts , period!Jim Boatwright