# Earn TONIC by locking xTONIC

## What is the rationale behind implementing [Maturity Lock Vaults](https://tectonic.gitbook.io/docs/guides/locking-xtonic)?

The rationale behind Maturity Lock Vaults is to further align our HODLERS with our mission of creating long-term value. Using Maturity Vaults, users can lock their xTONIC into fixed time periods and earn TONIC.

<figure><img src="https://986628987-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F1Qp0nwxyx5F5286sTIOk%2Fuploads%2FJlZYpZiKqqkqPVdSn37Q%2Fimage.png?alt=media&#x26;token=f24bf01f-bbc0-47a7-b4a0-edcb9be0e667" alt=""><figcaption></figcaption></figure>

## What's the incentive for locking xTONIC for a longer time period?

To reward our long-term supporters and holders of TONIC, the yield multiplier will increase exponentially for the longer locking periods (see table below), which the reward originates from community incentives

<figure><img src="https://986628987-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F1Qp0nwxyx5F5286sTIOk%2Fuploads%2FmNUvoEFD5t8N2eWz9Isb%2Fimage.png?alt=media&#x26;token=2f424f54-5da6-4bf6-b44c-9f890326be61" alt=""><figcaption></figcaption></figure>