Eruption Universal Edition by Illusioncraft

Produce fire bursts from your hand...

You can place the device in your pocket and take it out whenever you want to use your effect. No tubes up your arm or explosive canisters.
Very safe!!
Eruption is instantly repeatable, without the need to reload.
You have full control where the flame goes and how large a flame you produce, and when you produce the flame. 

Comes complete with:
Delivery system
Full Instructions
One Refill

You are ready to use instantly.

For information on refill (parts) of this trick see thie following LINK