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 & replaceable nylon heads will not harbor harmful bacteria. Color-coded red for restrooms. Handle Material(s): Plastic; Diameter: 3.5"; Color(s): Red; Quantity: 2 / Pack.