4/8/12/16/Replacement Toothbrush HeadsCompatible for Philips Electric Brush Head 1100 2100 4100 4300 5100 5300 6100 6500 etc(28pcs)

- These replacement brush heads feature extra-soft, flexible bristles that are gentle on young teeth and gums while ensuring a thorough clean for overall oral cleanliness. - Engineered with a standard click-on connector, they are designed to fit a broad range of popularelectric toothbrush models - providing great value and ensuring you always have fresh brush heads ready for replacement. - Designed for simple, tool-free snap-on installation. The brush heads are easy to rinse and maintain as part of a regular oral care routine. - Some models include color-changing indicator bristles that gradually fade, serving as a helpful visual reminder to replace the brush head for consistent cleaning performance.