WETH (Wrapped ETH) is a currency that allows users to make pre-authorized bids that can be fulfilled at a later date without any further action from the bidder. WETH is used to buy and sell with auctions on OpenSea. ETH and WETH are worth exactly the same amount and can be exchanged directly on your OpenSea profile.

This guide explains:

• how to exchange ETH for WETH on OpenSea.
• and how to add WETH as a token in your MetaMask.

Exchanging ETH for WETH on OpenSea

Click the wallet icon on the top right corner of your OpenSea page.

A smaller window will pop up asking how much ETH you'd like to convert to WETH. 

Then, select the "Convert tokens" button as pictured below.

A MetaMask window will appear, asking you to sign the transaction.

Once successful, WETH will appear in the wallet portion of your OpenSea account. You'll be able to clearly see the difference between WETH and ETH, as WETH has a pink Ethereum diamond logo.

Adding WETH to your wallet (MetaMask)

WETH may not appear by default on your MetaMask. To add WETH, click on the MetaMask extension and click add token at the bottom of the window.

Type in WETH into the Add Tokens search box, you should see Wrapped Ether (WETH) show up as an option. 

After confirming, you should see WETH appear in your asset list on the MetaMask extension.