General description These 10 pieces of 10X microscope eyepiece wide angle optical lenses are designed for professional use. They feature a standard field of 18mm and are made from durable metal, ensuring longevity and reliability in various applications. Technical specifications Magnification: 10X Field diameter: 18mm Material: Metal Size: 18mm Measurement allowed error: +/- 1-3cm Other information Package Contents: 10 * Eyepiece Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product.