K9 material ensures excellent light transmission and minimal distortion for precise optical applications. Available in multiple lengths (10mm, 13.5mm, 21mm, 30mm, 33.5mm, 34.5mm) to suit various optical setups and requirements. Cold working process enhances durability and performance, making it ideal for professional and educational use. Perfect for applications in optics, photography, and scientific experiments requiring accurate image transfer. Originating from Mainland China, this ridge prism meets high standards of and reliability for optical components.