The Postal Devices Training Kit has been developed to help train mailroom workers learn about the types of threats that they may encounter. This mailroom security training aid provides a number of parcels, envelopes, tubes and padded bags that contain explosive devices (IEDs), incendiary devices (IIDs) and sharp objects. The postal devices training kit also includes a number of replica mail IEDs from well known past terrorist events. All items within this postal devices training kit are marked with suspicious features and are addressed and stamped with a variety of different markings, both British and international. Items can be purpose-addressed, marked and stamped with specific country identification if details and samples are provided.