Description
End-rounded US DuPont nylon bristle are gentle on gums and clean thoroughly teeth surface with comfortable brushing experience. The bristles are medium,not extra soft. Replacement toothbrush heads 5 pack can be used long time. Our toothbrush replacement heads compatible with Fairywill FW-507/508/551/917/959, FW-D1/FW-D3/FW-D7/FW-D8, YUNCHI Y1 electric toothbrushes. They are NOT Compatible with Fairywill FW-E11/FW-P11/FW-P80, and NOT for kids toothbrush.
