# Collider

A collider often functions as a trigger that does not behave as a solid object and allows other colliders to pass through. When a collider enters its space, a trigger will call a certain game event or animation to occur.

![](https://dl.dropboxusercontent.com/s/4s5gdoh1ay0vysx/002.png?dl=0)

Unlike other Primitives in MANU, a Collider functions as a trigger that does not behave a solid object and allows other colliders to pass through. When another collider enters its space, a trigger will call a certain game event or an animation to occur. To add a collider in your game, go to the Library tab and select a collider from the suggested options below.

![](https://dl.dropboxusercontent.com/s/y5l2hip105xomcv/001.png?dl=0)

Collider can be used for multiple purposes in a game. Below are the examples of use cases for utilizing collider function in your games:

* With colliders you can create invisible obstacles for blocking the main character’s movements. 
* Use a collider as a pivot point for a group of objects. To learn more about how to group objects, please refer to Scene Panel / Group (link).
* Use collider to register the location of an object within the collider’s space.
* It might be helpful to create one default shape collider for an object that is made of multiple meshes.

To learn more about physical colliders and their settings, please go to [Physics](/learn/manual/physics/collider-1.md).


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