GUM Proxabrush Go-Betweens Wide are the largest brush in the Proxabrush line and is designed for individuals with larger spaces between their teeth. Also available in: Micro-Tight, Ultra-Tight, Tight, and Moderate.Our innovative interdental brushes are formatted with triangular bristles which are 25% more effective at removing dental plaque from between teeth than conventional round bristles.Coated with a patented antibacterial agent for continuous protection throughout the 10-day recommended usage period. Protective travel caps included to put in your pocket, purse or car for on-the-go usage.