Bought brand new on Amazon for $100. Never opened or used. This version has sturdy, transparent, acrylic walls that allow you to see the 3d printer.The TOPCUBE Dome Cover is specifically designed for the Bambu Lab A1 mini 3D printer. Made by TOPCUBE, this dome cover provides a secure and protective enclosure for your printer, ensuring a quiet and steady printing environment. Its compact design fits perfectly over the Bambu Lab A1 mini, while the TOPCUBE brand ensures quality and compatibility. With this dome cover, you can focus on your 3D printing projects without worrying about external distractions or interruptions.