Narrow, wide, flat-head design simplifies scrubbing tight corners and edges. Angled, hard polypropylene bristles break-up and remove severely caked-on soil. Full, 360 swivel provides optimal maneuverability. ACME-threaded handle socket mates with Unger locking-cone-equipped handles and poles. Color-coding decals enable task-specific labeling. Bristle Material: Polypropylene; Bristle Length: 1 in; Brush Length: 9 in. ~ Includes one brush head and one set of four color-coding decals.UNGCB20G. CB20G. Unger SmartColor Swivel Corner Brush.