Found complete instructions on line for brush replacement. Looks easy peasey. Note: I suspect that I will find the replacement tool when I buy the replacement heads.

I work in a dental office and have been using an Oral B for a couple years now. This is by far the best brush head out there. Within a day my teeth looked whiter and prettier! This one and the crossaction head are my two favorites!

Great toothbrushes

It works really well

Love the deep cleaning.

Taste Great

Just as ordered

Works great high cost

Very good product

Excellent product