These seem fine.
A multiple repeat customer here. There have twice been some quality control issues in the past with the white shaft parts separating, after a week of use, from the orange inner liner that is the socket part. I had to super glue those to continue to use them. These new ones seem fine though. Generally a good product line with fair prices.
Hello, James! Thanks for the review. I'm sorry to hear that you had some brush heads break on you! If you ever run into that issue again, please reach out to us at Support@OllieSmile.com and we'll be happy to help!