The Send Ethereum from Metamask technique allows you to use the MetaMask API and Web3.js to send Ethereum via Metamask in Webflow. In order to use this technique, you will need to add the custom code provided in the Page Settings before the closing body tag of your Webflow project. Yannik has created a Webflow cloneable that demonstrates this technique and has categorized it under the category of Crypto. By using the Send Ethereum from Metamask technique, you can easily integrate Ethereum transactions into your Webflow projects.