This Rubbermaid Commercial Low-Profile Carpet Bonnet with Green Scrubber Strip makes floor cleaning easy. This 21" carpet bonnet is intended for use with 175-300 RPM floor machines and features scrubber strips to smoothly remove stubborn blemishes with minimal effort. For use with shampoo or solvent based chemicals. Application: Carpet; Diameter: 19"; Color(s): White/Green; Color Family: White.