particle prefab question

I bought this package from this site and i am a little confused on how to use it.
Its a particle hit prefab. i have an animated char from mixamo and it has a gun with a bullet prefab on it that shoots fine, im just confused on where to place these particle
prefabs.here is the page if you want to take a look

www.gameprefabs.com/products/show/460

thanks

wayne

You have to import a package. Or, if the prefab wasn’t exported as a package, just put it into your assets folder.

If you want to know how to instantiate these particle prefabs at the hit point (like blood, sparks etc.), take a look at this question: How to make my enemy bleed