# Create an NFT sealed-bid auction

### How to create an NFT sealed-bid auction pool

1\. Visit <https://app.bounce.finance/> and select **NFT auction house** on the left top corner

2\. Click create **auction** button and the selection window pops up.

<figure><img src="/files/AYNb6SoPCXk9Bhvf6uqc" alt=""><figcaption></figcaption></figure>

3\. Select **NFT sealed-bid auction** and click **confirm** to go to the create a NFT sealed-bid pool page.

4\. The pool settings page consists of two sections.

#### The **contract information** section:

<figure><img src="/files/I5wz8Q2kwezSPGRUnTEJ" alt=""><figcaption></figcaption></figure>

* **Token type:** select ERC721 or ERC1155. Find the token type on [Etherscan](https://etherscan.io/).
* **Token contract address and token ID:** find the token contract address and token ID on Etherscan or [Opensea](https://opensea.io/) (connect with Metamask or any other eligible wallet)

#### The pool settings section:

<figure><img src="/files/2cHUthzoIkvTmSDnFteV" alt=""><figcaption></figcaption></figure>

* **From:** is auto filled after entering the contract address.
* **To:** the currency to receive for the auctioned assets. On the Ethereum network it is ETH, on Binance Smart Chain it is BNB.
* **Starting price (floor price):** the lowest price to start bidding on the NFT. This is the minimum price the pool creator will receive for the NFT.
* **Participant:**&#x20;
  * **Public** opens the auction to everyone,&#x20;
  * **AUCTION holders** opens the auction to users who hold at least 0.5 bot in their wallet
  * **Private** opens to exclusive users or groups secured by password
* **Pool name:** for participants to identify the auction on the Bounce homepage
* **Pool running time:** the time that the auction will be available

5\. Once all parameters are entered, click the **launch** button and approve the transaction in Metamask (or whichever wallet used). Two transactions are needed to launch the pool.

* Approve spending limit:

<figure><img src="/files/WnKSbS4ZaWJtpeYMN6Hb" alt=""><figcaption></figcaption></figure>

* Approve Contract interaction:

<figure><img src="/files/MgmpQCQRm2esWsCIuOj0" alt=""><figcaption></figcaption></figure>

*If a transaction error with very high gas fee (usually over 200 USD), appears please do not proceed and go back to the parameter page to check if everything is entered correctly.*

### Manual claim for pool creators

Pool creators need to come back to check the pool status page and manually claim the swapped ETH/USDT and any unswapped tokens. This can be done in one transaction at the end of the auction.


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