Oral-B iO 終極清潔替換刷頭，2入，黑色

The micro-vibrations feel noticeably smoother than the bristles on my old brush, and the round head reaches my back molars way better than any rectangular design I've tried. Two heads in the pack is a decent value for how long each one holds up.

I wasn't expecting such a noticeable difference from my old brush heads, but the micro-vibrations seem to really target the gum line without any harsh scrubbing. The round head design reaches my back molars way easier than I thought it would.

The round shape really hugs each tooth and those micro-vibrations make my mouth feel professionally cleaned after just two minutes. I’m already on my second pack—they hold up well and the black color doesn’t look grungy between swaps.