> For the complete documentation index, see [llms.txt](https://itemsadder.devs.beer/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://itemsadder.devs.beer/japanese/plugin-usage/adding-content/mobs/advanced-method/hitbox.md).

# Hitbox

## Setup

### Configure the head bone

Open your `.iaentitymodel` model file with **Blockbench**.\
Create a new bone, it can have any name.

![](/files/wMlxsjNlNXQoRzEnPBmW)

Resize your hitbox.

![](/files/6oJFd4zpoBXmHjOmxf5M)

![](/files/he0Qd4kQARDf4sfZZXLW)

{% hint style="warning" %}

* XYZ position doesn't matter.
* Only XY size matters, Z does not. This is a Minecraft limitation, it's how hitboxes work in the game.
  {% endhint %}

Rightclick on the bone and select "**Bone Config**"

![](/files/laf9DdrQWDs1imy2zAGo)

Check the "**Hitbox**" option and press "**Confirm**".

![](/files/kAdSG10VNJ9yIjJ1VXvY)