The Inert Advanced Weapons Kit was designed to fill a void in checkpoint security by enhancing the screener's knowledge of disassembled weapons. Firearms can be broken down, and blunt force threats like brass knuckles can be very dangerous. The weapon simulants are visually, X-ray, CT, and metal detector correct. They’re engineered to have the same density and effective atomic number (Zeff) as real threats. All cutting edges and points have been blunted. www.dsadetection.com