The Safariland Gunshot Residue Kit (GSR) is used for Scanning Electron Microscope Analysis. The Scanning Electron Microscope (SEM) analysis kit consists of metal discs 4.6cm (1 4/5") stub, 3.8cm (1 1/2") face with an adhesive on them. The discs are dabbed on the hands and the adhesive picks up the gunshot residue particles. The metal discs are then sent to the laboratory. Visible stains do not appear on the hands. The resulting data is obtained only by laboratory examination. The Kit contains instructions, plastic gloves and an envelope and evidence label for resealing.