duct Description 1:More rounded bristle: different with general toothbrush, these bristles through special process,could protect tooth enamel well, clean more thoroughly and comfortably. 2: Hofoo design, smooth operation: The built-in inner metal ring could coordinate brush head and brush handle transmission system. The built-in metal ring in bottom: Balances and ensures uniform amplitude. 3: Ergonomic design: The three-dimensional clipping increase bristle head ensures even greater friction surface and cleanliness. The wave-like design fits perfectly to the tooth shape. Externally, the outermost bristles are additionally in 5 degree angle to better fit the area between the teeth and gum line.
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