Refill Packaging with 8 CPS 07 prime interdental brushes. Probably the finest ever interdental brushes. CPS prime brushes can clean in very narrow interdental spaces helping to prevent gum inflammation and bad breath as well as reducing plastic waste. These are the finest little brushes on the market with unsurpassed durability. A CPS 07 prime is the second-finest CPS interdental brush and also fits into narrow spaces. , , The click system means that your personal, favourite holders can be used - to combat caries in the side teeth, gingivitis and periodontitis particularly easily and effectively. The quality of CPS prime makes a single cleaning movement sufficient: once in and out. Done.