The VER-27008 is a 12mm ESD Conductive Brush consist of a conductive plastic handle and thunder on conductive fibres, mixed with animal hair if stiffness is desired. Resistance from the tip of the brush to the handle is less than 10? to 5 x 10?R. Brushes should be used by operators who are earthed so as to dissipate any triboelectrical charges. Hard brushes are for scrubbing whilst soft ones are for brushing of delicate items such as optics and diskettes.