The VIPER Fiberglass Brush features soft white fiberglass fibers attached to a plastic handle. Perfect for all lab or crime scene processing. Excellent when training large groups at colleges and universities. Depending on the surface and background color, standard powders may be used with this brush. Each brush is packaged in a clear plastic storage tube. Available individually or in a discounted bulk pack of 12 or 25 brushes. Measures 6.5” in length.