The StrongHold Bag (Patented) is the perfect evidence bag for any type of wireless device, First responders can use the bag to ensure proper wireless procedures are kept and that the evidence is protected from potential case killers – after seizure wireless communications. The special tri-weave material used in the reusable StrongHold bag is made of a Nickel, Copper, and Silver plated nylon plain woven fabric. This fabric is key in preventing unwanted signals from corrupting or erasing vital evidence. Features: unique design that prevents data cables from acting as signal conduits; each bag comes with a clear evidence bag to allow for proper evidence handling.