Arrowhead Forensics Gun Shot Residue Kit - 4 Stub SEM - Plastic Case Leatherman Multi tool This is a device that

This is a device that blows continuous filtered air into your gas mask through positive pressure and lowers breathing resistance

Protected adjustment caps

Handle Color: Black Oxide

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Arrowhead Forensics Gun Shot Residue Kit - 4 Stub SEM - Plastic Case Leatherman Multi tool This is a device thatSEM (Scanning Electron Microscopy) tests are conducted through analysis of the residues which have been collected on sticky metal stubs. These kits come in a 4 stub application and includes instructions, information sheet, gloves, security seals and a plastic box. Box dimensions 5" W x 3" H x 1. 5" D. GSR Collection Kit Contents: 2 or 4 Carbon Disks (SEM) 1 Pair Protective Gloves Security Seal Plastic Case Information Sheet Instructions