12x Sensitive Replacement Toothbrush Heads Refill Compatible with Oral-B Cross Action Power 3733 4732, Clean Rotating Powerhead and Crisscross Bristles

Great purchase. Will be buying this item again. Wasn't available on Target.com and was cheaper than Amazon. After using these you won't go back to regular toothbrushes.

They were delivered right into my hands. They work great.

everything good - fit well

Great deal on replacement heads. Includes changing tool. Oral B cross action is a great brush. Buy with confidence!

I go through toothbrush heads like crazy (I over scrub my teeth), so I was delighted to find this larger pack of replacement toothbrush heads @ a much more reasonable price than I have been paying for the smaller pkgs.

just what we were looking for

I had to go on you tube to figure out how to replace the old one. My teeth are thanking me.

This was the first time replacing the heads on this toothbrush. It didnt come with no instructions on how to. It was easy to figure out how to replace the brush heads after looking it up on YouTube. Thanks to youtube that made it much easier.

Is not what I expected

These replacement brush heads fit my Oral-B Cross Action Power, but they are much firmer than the manufacturer's brush heads. They are firm or extra firm, as opposed to the gentle/soft bristles recommended by my dentist and manufactured by Oral-B. They hurt my gums at the gum line when I brush, so I can't use them. If you like a soft/gentle brush head, these are not for you. I will be throwing them in the trash.