Unger® Replacement Heads for Ergo Toilet-Bowl-Brush System, Red, 2/Pack, 5 Packs/Carton (UNGBBRHRCT) Case of 5Unger Replacement Heads for Ergo Toilet Bowl Brush System Attaches quickly to handle included in the Ergo Toilet bowl brush (sold separately). Unique brush head shape for easier access to hard to reach areas, cleans more effectively in less time. Reusable and replaceable nylon heads will not harbor harmful bacteria. Color coded red for restrooms. Global Product Type: Toilet Wands Brush Heads Handle Material(s): Plastic Diameter: 3. 5" Color(s): Red