Oral B Power Toothbrush iO Clean and Gum Protect Refills Black 4 PackOral B iO [GENUINE] Clean & Gum Protect Electric Toothbrush Replacement Brush Heads Black 4 Pack, Value Pack [GENUINE] The Oral B iO series Clean & Gum Protect Replacement Brush Heads combine powerful but gentle micro vibrations with our unique, dentist inspired round brush head design for Healthier Gums in 1 week*. Designed exclusively for Oral B iO electric toothbrush handles, Oral B iO Clean & Gum Protect brush head is specially designed for gentle