This set includes a convex mirror and a concave mirror, both designed for optical experiments. Each mirror comes with a sturdy base, ensuring stability during use. These mirrors are for demonstrating the principles of reflection and refraction in a classroom setting, making them an essential tool for science education. Features -Color:Black -Material: -Size:20.00X10.00X7.50cm/7.86X3.93X2.95in -durable materials: made from durable optical glass, ensuring the lenses' clarity and durability for longterm use -Versatile design: suitable for teaching, experiments, and observations, catering to various educational needs -High precision: the lens surfaces are finely processed to ensure clear and accurate imaging -Portable: lightweight and easy to carry, allowing for experiments and observations anytime, anywhere -Stable base: equipped with a sturdy base that provides stable support for the lenses, making it convenient for use and display Package list: Concave mirror*1 Convex mirror*1 optical experimental equipment