The enclosure is constructed with aircraft grade aluminum alloy and laser filtering acrylic sheet. It is super easy to assemble as the doors come pre-assembled for you. The enclosure can protect you and your family members from potential hazards caused by the laser engraving/cutting process. When one of the doors is opened, the laser engraving/cutting process will stop automatically; when all the doors are closed, you can resume the laser engraving/cutting via the touchscreen. (This Door Detection feature works in the following scenarios: engraving/cutting via Wi-Fi or USB flash drive.) The enclosure uses a folding door mechanism and takes up less space, reducing the risk of breaking the acrylic panels.