> For the complete documentation index, see [llms.txt](https://docs.tektools.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tektools.app/tektools-nfts/evolution.md).

# Evolution

Level up your ToolBox

One way to increase your earnings with Tektools is to evolve your **Toolbox**, you can increase the level of your **Toolbox** up to a max level of 10.  **Increased levels earn higer rewards.**

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You can also personalize your Toolbox garage wall with NFTs of your choice, enhancing its appeal for yourself and others.\
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See below an updated and customized Level 3 Toolbox! 

<figure><img src="https://2649312408-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FhGcUBDxovibkAp0gIDWo%2Fuploads%2FaexZA6tWeoXzibKOpTaj%2FToolboxLevel3Customized.png?alt=media&amp;token=04aff377-061b-48ff-8737-ddd28a55e6da" alt=""><figcaption><p>You can see 4 big collections and a sneak peak of our upcoming PFP in this customized toolbox.</p></figcaption></figure>

**Leveling Process**:&#x20;

To level up an NFT, holders need to stake NFTs to earn **$SALT** token.&#x20;

Every 20 days, holders earn enough **$SALT** to evolve an NFT to the next level.&#x20;

The progression yields a higher multiplier, maxing out at a 4x multiplier. For instance:

* Level 1-2: 1x multiplier
* Level 3-55: 2x multiplier
* Level 6-9: 3x multiplier
* Level 10: 4x multiplier