This is a life-size detonator just like you see in movies and games that moves just like the real thing, it even has a satisfying click sound when you press the button.  This model is based on the M57 Electrical Firing Device that is used by militaries all around the world to set off Claymore Mines, C4, and other explosives.

The model is super easy to put together, no glue is required, assembly takes less than a minute.  Just snap on the handle, insert the clicker button, insert the antenna, and pop on the silver safety.