Small convenient plastic case holds 40 brushes. The case is resealable and perfect for travelling or your bag. Perfect for cleaning in between tight spaces (especially for those with stripped incisors) or tight contacts between their teeth. Suitable for daily at-home maintenance for healthy teeth and gums. Size 00 is also great for treating gum conditions below the gum line. Connector Cap can be used as an extention handle for easier use, or can be used to connect two different sized Piksters together for easier use. Size 00 is part of the Piksters Connect System.