Bests & Worsts Reviews from Amazon

These are crap. They fall off the brush head. They wear quickly. I knew they were knock offs but I expected better quality. I wil buy the manufacturers replacements from now on. Buy cheap...etc. UPDATE: Was contacted by the seller via email and asked to delete this negative review. Seller offered me a full refund for the courtesy. This just makes me want to stress again how bad this product is. Still junk. Stay away. Buy original replacements. UPDATE: Since I left this review I have been contacted yet again by this seller offering me a refund if I will remove the negative review. They contacted me via my personal email address which Amazon says isn't possible but here we are. I've reported them both times to Amazon fraud protection. We'll see if anything changes. I doubt it. My recommendation, still, is to avoid this seller. T