These Oral-B Replaceable Toothbrush Heads are designed with sensitive cleaning in mind, providing gentle yet effective plaque removal for optimal oral hygiene. The specialized filaments ensure thorough cleaning along the gumline and hard-to-reach areas of the mouth. These heads integrate seamlessly with compatible Oral-B electric toothbrushes. Regular replacement, as recommended by dental professionals, ensures peak performance of your electric toothbrush for maintaining a healthy smile.