Constructed from premium JGS-1 quartz glass, ensuring excellent durability and performance in various applications. devised with precise dimensions (Diameter: 8mm, Thickness: 1mm) for optimal fitting and functionality in optical setups. Exceptional surface accuracy of /4@632.8nm, making it ideal for high-precision optical measurements and experiments. High temperature resistance, capable of withstanding continuous operation at temperatures up to 1200°C, suitable for demanding environments. Customizable options available; our customer service for tailored solutions to meet your specific needs.