Anti-Static Dissipative Cleaning Brush. Size 1.
This brush will allow cleaning of ESD sensitive components without generating any harmful static charges.
You can clean your memory, motherboards, PCI cards, graphic cards fans, vents and any other electrical component that is used in today's technology. These brushes are a must when cleaning your computer components.
 
Specification: 6" (150mm) in length and 1 1/2" (40mm) wide.
The brushes minimize static charge generation and dissipate ESD charges to ground when held by grounded personnel.
The handle is made of dissipative plastic the comb is made of dissipative nylon(10⁶–10⁹ Ω).

The comb fibres are stiffer than normal brushes, so will remove the dust built up in fans, vents etc easily.
Please remember you still need to be grounded when handling sensitive component.