Pen writes with special disappearing ink Snap on scope for seeing far-away or to magnify Snap on light for seeing in the dark Snap on motion alarm for catching intruders Snap on light tube bends light to read and write messages in the dark Portable locking case keeps your gear safe This is no ordinary pen! It's really a top-secret tool kit. When your ready for action the Spy Pen Tool Kit has 6 tools to help you complete your mission.