High-Quality Focus Lens: The Focus Lens 20mm FL 50.8mm is specifically designed for 0-200W CO2 laser engraving and cutting machines, ensuring optimal performance and precision in your projects. Enhanced Laser Precision: With a length of 50.8mm, this lens delivers superior focus, allowing for clean cuts and detailed engravings on materials, making it an essential tool for any laser operator. Construction: Made from high-quality materials, the Focus Lens 20mm FL 50.8mm is built to withstand the demands of frequent use in CO2 laser applications, providing durability and reliability. Easy Installation: Designed for compatibility with most 0-200W CO2 laser engraving and cutting machines, this focus lens can be easily installed, helping you get started on your projects without delay. Versatile Applications: Ideal for both professional and hobbyist laser users, the Focus Lens 20mm FL 50.8mm enhances your ability to engrave and cut a wide range of materials, including wood, acrylic, and leather. Color: As shown Material: CVD zinc selenide Package Contents: 1 x Focus Lens for Laser Engraving Cutting Machine Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. Measurement may vary by +/- 1-3cm.