This brush has a 0.016" stiff Static Dissipative Nylon Bristle with a Static Dissipative Acetal handle. The Nylon fill material is hand-laced with Nylon twine into its handle for maximum fiber retention. This high-quality brush has a 3 x 11-row configuration, with a 7/16" trim, and a brush face of 1-1/4" x 5/16". It can be used for cleaning or scrubbing applications in confined, static-sensitive areas. The handle is no more than 3/8" wide at the brush end. This brush can safely remove surface charges without harming sensitive electronic components provided that the operator is properly grounded. Autoclavable for cleanroom or sterile applications.