> For the complete documentation index, see [llms.txt](https://gum-ball.gitbook.io/gumball-protocol/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gum-ball.gitbook.io/gumball-protocol/how-to/exchange/mint-gnft.md).

# Buy gNFT

GumBall NFTs (gNFTs) can be purchased using base asset (ex $WETH) or collection keys. Users can choose to mint an unrevealed gNFT or choose from any that have been returned to the GumBall Machine

## Requirements

* [x] Collection tokens balance >= 1 or base asset balance > gNFT market price 
* [x] ETH balance >= current gas fees

## Steps

### 1. Select the 'Collection' tab on the toolbar

<figure><img src="https://1778358387-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fwqs3mgbgfeItR3QWNNJA%2Fuploads%2F5KhAxartbp8T1RVEx1H9%2FTool%20Bar.png?alt=media&amp;token=13dff1a3-36c2-49ec-a27c-5a15da8ee90e" alt=""><figcaption></figcaption></figure>

### 2. Select your collection of interest

<figure><img src="https://1778358387-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fwqs3mgbgfeItR3QWNNJA%2Fuploads%2FaQLGgzsgiKiIz7wHE92Q%2Fcollection.png?alt=media&amp;token=405510e9-ba6b-4d9c-ad29-7f2b26b0608d" alt=""><figcaption></figcaption></figure>

### 3. On the "Buy" tab, choose to mint an unrevealed gNFT or select already revealed gNFTs to buy &#x20;

![](https://1778358387-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fwqs3mgbgfeItR3QWNNJA%2Fuploads%2F9FYwOs247AZeee7kL3nz%2FBuy%20Tab.png?alt=media\&token=d15085f7-8299-4970-a450-732d2f299f68)

### 4. If minting unrevealed gNFTs, you can choose how many you would like to mint in the cart pop-up

<figure><img src="https://1778358387-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fwqs3mgbgfeItR3QWNNJA%2Fuploads%2F9F8UoRZMb0alw4XMSH5k%2FMinting%20a%20new%20an%20unrevealed%20cat.png?alt=media&amp;token=1167dcd8-e530-43f3-8517-dfebecda8e2e" alt=""><figcaption></figcaption></figure>

### 5. If buying already revealed (returned) gNFTs, you can choose as many as you'd like to add to your cart

![](https://1778358387-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fwqs3mgbgfeItR3QWNNJA%2Fuploads%2FYT3HJhUWmP8twwPE0juc%2Fminting%20revealed%20cats.png?alt=media\&token=d6c5a53b-3954-4b55-800a-4f4d5345a370)

### 6. Choose your payment type, either base asset or collection tokens, and click the buy or mint button

![](https://1778358387-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fwqs3mgbgfeItR3QWNNJA%2Fuploads%2F3FbavJ1O4KVMjtYcJRpn%2Fchoose%20payment.png?alt=media\&token=667181e3-8f38-47ce-9c8d-70fb49b05731)

### 7. Click 'Confirm' on the Metamask pop-up to approve access

![](https://1778358387-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fwqs3mgbgfeItR3QWNNJA%2Fuploads%2FUpayMNsspy6vMI9Pc4eh%2Fmetamask%20approve.png?alt=media\&token=a5c63a4f-a76b-45be-9824-d93c645b545e)

### 8. Click 'Confirm' on the next Metamask pop-up to initiate mint/purchase

![](https://1778358387-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fwqs3mgbgfeItR3QWNNJA%2Fuploads%2FNPl82IDDT82c2Jiista1%2Fmetamask%20confirm.png?alt=media\&token=04623d15-f418-427c-92fd-000c717031cc)