iO Ultimate Clean 替換刷頭，2入，黑色

The round head hugs each tooth way better than my old rectangular brush ever did, and the micro-vibrations feel gentle yet thorough. These replacements click in securely and last a solid few months before the bristles start to splay.

Every time I swap in a fresh one of these, the brush immediately feels like it's vibrating with a bit more punch, and the round bristles really hug each tooth on the outer curve. The micro-vibration clean is noticeably smoother on my gums than my old brush head ever was.

The round head fits my iO just right and the bristles are firm without being harsh on my gums. I’ve noticed the polish sensation during brushing feels more thorough than with my old brush, and the black color hides toothpaste stains way better than white ones did.