"Japan brand for Oral Care products, Toothbrush and Interdental Brush.
No.1 share for I-shape Interdental Brush in Japan. "

Colors May Vary. DentalPro Platinum Colloid Ceramics (PCC)
Black Bristles have special power to clean 15-percent higher plaque removal than
 compared to normal nylon bristles. 
Wide head design (2.2 times more Bristles) with 4 Diamond Edges clean more effectively.