Very "hair" much much much too hard

I will be very hard as the bristles of this toothbrush head Oral B
The only positive is that the tip of the head and perfectly similar to the original Oral B and can be perfectly put in the transport box of electric toothbrushes Oral B Triumph "5000".
So why good point from the head adaptable Oral B I had before and did not adapt.

By cons I will be very hard for the rest of my comment.
The hair is much too hard against the head Oral B of origin.
This is not good for the gums, for example.
I still have an original Oral B head and whose model is similar the "clean precision".
It could be stripped of the metal with so much hair are hard. :-).
Of course it was a joke but still bristles are too hard.
I have only to lay the brushes. :-(