Braun EB50RX3EL (white) Oral-B Multi-Action Replacement Brush for Electric Toothbrushes, Pack of 3

*We recommend replacing your brush every 3 months to keep it in the best condition. Please also purchase replacement brushes at the same time. The patented 16-degree angled bristles allow it to reach between your teeth. The unique X-shaped bristles scrub away fine plaque on the surface of your teeth that regular bristles cannot reach. When it's time to replace your brush, the green bristles will turn yellow to let you know.