Featuring DeepClean bristles Short bristles to clean the tooth surface Longer tapered bristles to help clean between teethGood for kids who are losing their baby teeth and getting their adult teethloose teeth, gaps, crooked teethKids with braces4 brushes per packSuitable for use with with the Brush-Baby KidzSonic Electric Toothbrush and Brush-Baby WildOnes Rechargeable Toothbrush.Not suitable for use with the Brush-Baby BabySonic Toothbrush