This is the Ender Extender. Upsize your Ender 3, Ender 3 Pro, Ender V2 or Ender 3 Max to a 300x300x400, or 400x400x500 print area. Other sizes available too. Many options available like dual z addon, skr board, touch display. The real motivation for the project is to reuse and recycle existing hardware, making the most out of what you have. We are located in Dallas Texas, USA. We also have the facebook group Ender XL builders club. Our specialty is to make them bigger! Ender 5 extension kit in the works too.