Although new, unused, and unopened, it has discolored due to long-term storage. Please consider if you are not concerned about this. 30 pre-cut strand interdental cleaner specifically designed for implants and bridges. - Brand: Thornton - Product Name: Bridge & Implant - Application: Interdental cleaner - Number of strands: 30 - How to use: Easy 2-step process - Recommendation: Recommended by dentists Thank you for viewing.