Pace Flex Arm, ESD Safe, 3" Diameter, For Arm-Evac Fume Go to amazon.com Related posts Looking for a fume arm? Have a look at this 2022 guide! Feature8886-0750-P1 DescriptionESD Rating: Surface Resistivity: 1.00E3 Ohm Volume Resistivity: Directly onto Fume Extractor or uses optional Bench Mounting Bracket Standard Endpiece: Round. 1 per user