The Genuine ZEISS Okular W 10x21 Focusable Eyepiece Pair 455042-0000-000 is a high-quality pair of microscope eyepieces made by the renowned brand ZEISS in Germany. These eyepieces are designed to provide a clear and precise magnification of 10x, with a focusable design for added versatility in different microscopy applications. Ideal for use in microscopes in various healthcare, lab, and industrial settings, these eyepieces are a reliable and essential accessory for accurate and detailed observations.