Features:
* Antistatic brushes with conductive plastic handle 
* Surface resistance of handle:≤107Ω 
* Surface resistance of lever handle:≤109Ω 
* Hair: antistatic plastic threads, animal hair or metal wire 
* Custom hair length and stiffness available 
* Firm brushes are mainly for electronics, especially circuit boards; Very soft brushes can be used for optics etc.