1pcs Convex Mirror Lens | 75mm Diameter and 200mm Focal Length Sound made from good-grade copper for

made from good-grade copper for excellent conductivity and versatility

This human anatomy model contains removable parts and organs including:

small intestine

Designed for use in professional laboratories but is an ideal choice for science classrooms and household use

Front surface silvering eliminates double reflections at the Un silvered surface

1pcs Convex Mirror Lens | 75mm Diameter and 200mm Focal Length Sound made from good-grade copper forHigh Quality Glass: Made from durable and high quality glass, this Convex Mirror Lens is designed to last and provide accurate and reliable results in a variety of scientific applications. 75mm Diameter: With a diameter of 75mm, this lens is perfect for use in a range of optical experiments, including refraction, reflection, and more. 200mm Focal: Featuring a 200mm focal, this lens is an ideal tool for creating focused images and light beams.