Metamask is a popular browser extension that allows you to interact with Ethereum and other networks. If you want to add a custom token to metamask, you can follow these simple steps:

1. Open MetaMask and click on the menu icon on the top left corner.

2. Select "Add Token" from the drop-down menu.

3. Click on the "Custom Token" tab.

4. Enter the token contract address, which is a unique identifier for the token on the Ethereum network. You can find the token contract address on websites like Etherscan.

5. The token symbol and decimal places will be automatically filled in based on the contract address. You can also edit them if you want.

6. Click on "Next" and then "Add Tokens".

7. You will see your token balance on MetaMask under "Assets".

You can now use your eth token on MetaMask and any dApps that support it.\

Read Also: Where is Bitcoin address on MetaMask?