ESD Brushes are ideal for removing dust, dirt and left over materials from printed circuit boards (PCB) and other static sensitive components. Two sided brush for double the bristle life. Permanent static dissipative bristles, made of Nylon 6.12, superior grade, high quality nylon filament, yellow bristles, 0.4mm in diameter. Brushes can be used with IPA (Ispropyl alcohol). Highly resilient, durable and abrasion resistant. For cleaning ESD sensitive assemblies Specifications Length 5" (127mm) Brush width: 1/2" (13mm) Bristle Material: Yellow Nylon 6.12 filament Bristle firmness: Hard Handle Material: Aluminum Volume Resistance: 1 x 104 to < 1 x 1011 ohms tested per ANSI/ESD STM11.12