6" long and 3/8" diameter handle with 3/4" long and 7/16" wide bristles. Made with Stainless Steel handles and new Statigo9 fiber bristles. Statigo9 is a static dissipative acetal that is as durable as nylon, thick enough to perform mechanical work, does not shed or slough and is clean room compatible. The bristles are mechanically clamped into the handle for maximum fiber retention without the use of adhesives that could contaminate the work area. New Statigo9 fibers are similar to Nylon fibers, except they are ESD Safe with a surface resistivity of 106. Made in USA