The DoorJammer is a unique, new and innovative portable door security device for anyone needing privacy and security. It is an ideal solution for Lone Female or Male Travellers, Backpackers, Students and Seniors. The DoorJammer is a simple way to prevent unwanted intrusions into any room and provide peace of mind. It is portable, discreet yet highly effective. It can be fitted to most doors in seconds to 'jam' the door shut and make the occupant(s) feel totally secure and private.