Unger Replacement Heads for Ergo Toilet-Bowl-Brush System, 2/PackAttaches 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. Handle Material: Plastic; Diameter: 3 1/2"; Color(s): Red.