Feather:

• Cmpatibility: Our MERUYOO replacement heads are perfectly compatible with Oral-B iO 3/4/5/6/7/8/9/10 Series Electric Toothbrushes.

• Replace your brush head every 3 months as recommended by dentists and get a box of 6 pieces that can last for a year and save your money.

• Made with high-quality US DuPont bristles that are durable, gentle to gum, and have advanced indicator bristles that remind you when to replace your brush head.

• Remove more tooth stains with the multi-directional double-headed toothbrush head that can clean from different angles and adapt to your teeth shape.

• Enjoy a deep and thorough cleaning with the rotating powerhead and soft bristles that reach deep between teeth and sweep away plaque.