# Launch liquidity pool

If you have not found a lending pool for your circumstance, you can permissionlessly launch new pools using the app frontend (+) or by using the contract SmartCommitmentFactory.

<figure><img src="/files/G4KrxlXzy0e7ak2Mx8fx" alt=""><figcaption><p>Pools page</p></figcaption></figure>

Pool configuration:

* **Supply token** - ERC20 token that will be used for lending (borrowers will receive this token when accepting the pool loan).
* **Collateral token** - ERC20 token that the borrowers will "lock" in Teller escrow when borrowing the supply token.
* **Collateralization ratio** - the required collateral value needed relative to a loan amount, minimum is 100% (for example 500% ratio equates to $5 of collateral for every $1 borrowed, this translates to 20% LTV).
* **Duration per loan** - maximum time that a loan can be outstanding, before defaulting.
* **Interest rate range** - pool yield range (based on the amount actively borrowed vs the total amount available to borrow).

<figure><img src="/files/XemvbLr2jCFFDDEDYEXy" alt=""><figcaption><p>Pool configuration</p></figcaption></figure>

Once the transaction is confirmed in the connected wallet the new pool will show up in the pool page, each supply token will have it's own category.

<figure><img src="/files/Aatw2nkDFJkgEZ4SQoYh" alt=""><figcaption><p>Supply token categories</p></figcaption></figure>

**Supply token** can be any ERC20 token, either popular **stablecoins** or any other ERC20 tokens (for example use LINK as collateral to lend wETH as supply token).

Note: in order for the pool to support [loan Extensions](/teller-lite/lending-pools/borrowing/extend-your-loan.md) make sure the "**supply token**" is supported by Aave protocol, for rollovers to be successful an Aave flash loan is used on the backend.&#x20;


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