---
title: "Tighten"
url: "https://help.maxon.net/c4d/en-us/Content/html/TOOLHAIRCURL-HAIR_TOOL_CURL_GROUP_TIGHTEN.html"
section_path: "Simulate Menu > The Simulation System > Hair > Tools, Functions, Modes > HAIR Tools > Curl > Tighten"
element_id: "TOOLHAIRCURL"
group_id: "HAIR_TOOL_CURL_GROUP_TIGHTEN"
description: "Use this graph to define how the strength of tightening, as defined in the Options tab, will be applied."
---

## Tighten

### Tighten

Parameter ID: `HAIR_TOOL_CURL_TIGHTEN`

Use this graph to define how the strength of tightening, as defined in the **Options** tab, will be applied.