Two-layer structure with long, supple tapered hair and short yes hair. The long bristles reach small areas such as interdental areas, periodontal pockets, and gaps between prosthetics and orthodontic appliances, while at the same time the short filament cleanly polishes the tooth surface. It is also ideal for those who prefer a soft polish. The thumb pad (thumb rest) and the back are made of non-slip material (TPE), which fits comfortably in the hand.