These are awful. They stop spinning after the first use. I agree with the commenter who says 12 equates to a 12 day supply. Cheap knockoffs. First thing I have bought from Woot that I have regretted.
Wish I had waited until there were more comments before buying these Sonicare replacement heads. I knew they were generic, but the bristles are just coming out, which kind of weirds me out considering they are going in my mouth. Requesting a refund.
p.s. The adult & kids sizes are hardly any different. Both are considerably larger than the original kids sizes.
I bought these for my Pulsonic tooth brush and they were awesome!
Thought I’d come by and say that after using these replacement toothbrush heads, none of them have lasted longer than a week before breaking.