Oral-B EB50/8 Crossaction Toothbrush Heads, White, 8 Refills

The product was original equipment. No loose connections. It all works good without the head coming off in the middle of brushing which has happened to me for knockoff brands. Nearly lost a tooth trying to stop the vibrating shaft from stabbing me in my gum line. Yes the head came off of one of the knockoff brands and I nearly cut myself bad from the vibrating shaft. My lips and gums and teeth were in jeopardy. So I learned with that experience to never buy anything else but original equipment. No loose fitting heads to worry about.

I was worried the medium brushes would not be firm enough and they are perfect. They also fit my base nicely. Sometimes the fit is sloppy. Not with these.

Ive been a dedicated user of Crossaction brush heads for years. The original version -- which is shown in the product description images -- have an outer row of alternating blue and white bristles. However, in this order, I received CROSS ACTION CleanMaximiser brush heads -- which have an outer row of alternating green and white bristles. Both versions work well on my SMART 1500 toothbrush. Several tests with sets of both -- original in AM brush session, Maximiser in the PM session; and vice-versa -- reveal that the Maximisers wear out sooner and need to replaced more often. The originals seem to hold up 7-10 days longer.

Only replacement head I use. Makes my teeth feel like I just came from a professional cleaning. Hard to find this specific one in stores.

The CrossAction replacement heads fits most Oral-b electric toothbrushes.

This is the best deal for replacement brush heads that Ive found. These are perfect for my rechargeable oral-b toothbrush. Each toothbrush head is individually wrapped, so its easy to store the extras until I need to replace them again.

They fit the toothbrush they were advertised for. What can you say about toothbrushes?

This brush holds up to daily use unlike cheaper versions that fray after a few uses.

These are real Braun replacement heads. My packaging was German, but who cares. Good value.