Product name: Electric Toothbrush Brush Head Replacement accessory for electric toothbrushes - Regularly replacing the brush head helps keep brushing effective and supports dental health - Designed as a compatible replacement head for your electric toothbrush Compatibility - Fits the following models: FW-D1, FW-D3, FW-D7, FW-D8, FW507, FW508, FW515, FW551, FW917, FW959, FW2011 What this offers - Function: replacement brush head for ongoing oral care - Performance: helps maintain cleaning effectiveness when swapped at appropriate intervals - Compatibility: specifically listed FW-D1/D3/D7/D8/FW507/FW508/FW515/FW551/FW917/FW959/FW2011 models Use scenarios - Daily home brushing with a fresh head to preserve cleaning quality - Shared devices in family households where multiple users rely on a single toothbrush - Travel or gym routines, ensuring you maintain consistent brushing performance away from home Notes - Replace the brush head as part of regular maintenance to sustain brushing effectiveness.