This Anti-Static Vacuum Brush has 0.016" static dissipative Nylon bristles and a standard molded plastic vacuum head with a grounding point that provides electrical continuity to the static dissipative filament. The brush uses static dissipative Nylon bristles for static-sensitive applications in static sensitive areas. Fits on a standard 1-1/4" tapered vacuum hose. Trim length 1", brush head diameter 2-1/2", inlet diameter 1".