These kits are suitable for field work and gunshot residue in the lab or out. Manufactured from a special certified aluminum alloy, containing only trace amounts of Barium (~0.00010%), Copper (~0.0139%), Zinc (~0.0094%), Nickel (~0.00309%), and Antimony (~0.00080%). These sample mounts are suitable for typical forensic sample studies. The kit consists of 10 pin mounts (12.74 mm diameter) 10 carbon adhesive tabs, 10 storage vials, and one plastic tweezer.