The Oral-B iO Ultimate Clean Brush Heads (2 Pack) are expertly designed to provide a deep and thorough clean, removing up to 100% more plaque for healthier gums. Featuring angled bristles that reach deep between teeth, these brush heads are inspired by professional dental tools to ensure an effective yet gentle clean. The round brush head design, combined with Oral-B iO technology, maximizes contact with each tooth, helping to deliver a professional-level clean every day.How to Use:Attach the brush head to your Oral-B iO electric toothbrush by firmly pressing it onto the handle until it clicks into place.Apply toothpaste and place the brush head against your teeth at a slight angle.Turn on the toothbrush and gently guide it over your teeth, allowing the oscillating and rotating bristles to do the work.Brush for 2 minutes, following the built-in timer for even coverage across all areas of your mouth.Rinse the brush head thoroughly after use and store it upright to dry.Replace every 3 mo