Don't bother purchasing
These do not fit my ProClean Sonic brush and are totally inconsistent with my brush. I am now stuck with Brush heads that I cannot use.
Brio CA
Hi David, thanks for the review! I'm sorry to hear about the trouble. Our brush heads are only meant to be compatible with our toothbrush, the Brio SmartClean. Please reach out to our support email, support@brio4life.com, if you'd like to pursue return options.