Good for the Price
These are not genuine Oral-B brand brush heads (hence the inexpensive price), so they don't fit PERFECTLY onto the brush handle, but they do work.  They stay on and I have had no issues with shedding bristles. The bristles do feel a little bit softer than the brand name brush head. Sometimes it will take a second for the brush to vibrate with the handle after I turn it on, but it does work. I like that it comes with colored bands so you can easily identify your brush if your spouse/roommate has the same one. For around $5 for four brush heads, I can't really complain. It does what it's supposed to.
Rating: 3 stars