1. Sandwich style brush hair layout, imported Binchotan antimicrobial brush hair + imported silver ion antimicrobial brush hair + imported spiral brush hair, massaging your gum while cleaning deep 2. Easy to clean the gaps between gum and teeth, clear out dental plaque 3. High quality nickel silver plates to hold brush hair, anti-corrosion, less likely to grow bacteria 4. Food grade brush hair and handle, safe to use 5. Suitable for Bass Method, protects your gum while cleaning gingival sulcus
