The optical glass construction of this microscope eyepiece ensures durability and performance. Its wide-angle feature allows for a broader view, which is essential for comprehensive biological examinations. This eyepiece is great for professional settings, enhancing the overall microscopy experience. Features -Color:Black -Material:Metal -Size: 5.30X2.80X2.80cm/2.08X1.10X1.10in -Magnification: 10 X -Enhanced magnification: achieve high magnification, providing clear and intricate details for accurate scientific analysis -Broad viewing angle: the design allows for a larger field of view, improving efficiency and making it easier to observe specimens -Good material: constructed from good material, this eyepiece ensures longevity and precise, detailed observations -Ergonomic design: comfortable to use, this eyepiece is designed to meet diverse needs, making extended viewing sessions more pleasant - use: suitable for various fields such as biology, medicine, and education, this eyepiece is versatile and practical for different applications Package list: 1 x biological microscope lens