Review on 10 PCS Electric Toothbrush Replacement Heads Cover For Oral-B, Travel & Home Brush Protection by Rachael Young

I bought these for my daughter’s new Oral-B iO 5 toothbrush that didn’t come with covers. They fit perfect and snap securely on. The problem is that after only 2 days I noticed there was a crack. I don’t know if it cracked from her simply taking it on and off or whether it fell (they are that brittle hard plastic material) but I am disappointed the first one in use cracked within a matter of days. Still usable, and it came with 6 in the package but we might go through those 6 quickly. Time will tell.Update: my son also uses one of these on his iO5 and I am using on my iO6. Again, the one on my son’s toothbrush cracked almost exactly like his sister’s within a couple days of use. My toothbrush is in a different bathroom and I don’t put the cap on all the time because I keep mine in a more protected place. My cap has not cracked, yet. Even cracked they are still usable but may completely break apart in the future. Once these are all ruined I’ll buy a different brand. I’m removing 2 more stars due to poor quality.