# Buy ZCN for NFT via ERC token

1. Select **Buy with ERC token** as a mode of payment for buying allocation for storing NFT and click **Continue**.

<figure><img src="https://979598987-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNrAZJ0KGiwEbKkbVRYPu%2Fuploads%2FDV8iB5c6FvBul8owfxeZ%2Fselect%20erc%20as%20mode%20of%20payment.jpg?alt=media&#x26;token=aee51669-6032-4c9f-a5be-11eb2cd434c1" alt=""><figcaption></figcaption></figure>

2. Next, carefully review and confirm the desired storage amount for your purchase.&#x20;

<figure><img src="https://979598987-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNrAZJ0KGiwEbKkbVRYPu%2Fuploads%2FUBuhkCfqxtKsMeyNNlxu%2Freview%20and%20confirm%20storage.jpg?alt=media&#x26;token=f9b70b38-f7a1-431b-9830-67f6d186233e" alt=""><figcaption></figcaption></figure>

3. Then, click "Buy."

<figure><img src="https://979598987-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNrAZJ0KGiwEbKkbVRYPu%2Fuploads%2FWm7GMzYi8cPbx4AvtsIw%2Fbuy%20zcn%20via%20erc.jpg?alt=media&#x26;token=352322d3-75d7-4863-9921-d4bca3361f2b" alt=""><figcaption></figcaption></figure>

4. Subsequently, click "Connect to MetaMask."

<figure><img src="https://979598987-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNrAZJ0KGiwEbKkbVRYPu%2Fuploads%2FwggjknvMYvBMRuo3dlua%2Fbuy%20zcn%20and%20connect%20to%20metamask.jpg?alt=media&#x26;token=923a0dc2-29a0-4fb2-812d-1c7899ad5e4e" alt=""><figcaption></figcaption></figure>

**Note:** Please ensure that you have MetaMask installed as a browser extension and are signed in with your wallet before proceeding.

5. Chalk will retrieve the network fees and total cost in ETH to buy ZCN. Proceed **Next** to Continue.

<figure><img src="https://979598987-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNrAZJ0KGiwEbKkbVRYPu%2Fuploads%2FCWRcIry5iUFYZURwWlZO%2Fchalk%20buy%20zcn%20erc%2020%20.jpg?alt=media&#x26;token=157bf6de-cade-4219-97a3-8d5f3df13c9b" alt=""><figcaption></figcaption></figure>

6. Now, provide your Metamask/Ethereum wallet address for making payment then proceed by clicking "Next".&#x20;

<figure><img src="https://979598987-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNrAZJ0KGiwEbKkbVRYPu%2Fuploads%2Fp6mh1VEQ4yRoqNuFeAF5%2Fchalk%20buy%20zcn%20ethereum%20wallet%20address.jpg?alt=media&#x26;token=27ce2f8e-ef26-40ae-9545-df3e38bcdbd9" alt=""><figcaption></figcaption></figure>

7. The process of buying ZCN comprises of four distinct stages.

<figure><img src="https://979598987-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNrAZJ0KGiwEbKkbVRYPu%2Fuploads%2FpaxV8oZyJLupF7WYWVuf%2Fchalk%20steps%20for%20buying%20zcn.jpg?alt=media&#x26;token=b4426ec5-87d3-4274-8091-ce15a9203080" alt=""><figcaption></figcaption></figure>

* Swap: Exchanging ETH tokens for ZCN-ERC.
* Increase Allowance: A higher allowance or gas limit typically signifies that the transaction will require more processing and prioritization.
* Burn: Burning a specific amount of the currency with each trade.
* Mint: Creating new units of the currency to replace those that were burned.

&#x20;**Note:** Please be aware that Chalk will establish a connection with MetaMask and seek confirmation for MetaMask transactions.