There is always a fear that buying discounted products might ended up receiving counterfeited items. I have experienced multiple times on eBay. This one is good quality genuine Oral B. Very happy with them.
I bought these refills for my husband and myself to use. We really like them. The brush heads are firm, but not too stiff, they last a really long time, but actually tell you by way of colour change when they are due to be replaced.