Introducing the Concave Lens, an essential tool for any school laboratory! This high-quality concave lens is perfect for conducting experiments, demonstrating optical principles, and more. Whether you're conducting experiments in a school laboratory, teaching a lesson on optics, or simply exploring the properties of light, the Concave Lens is an excellent choice. With its durable construction, precise optical properties, and user-friendly design, this lens is sure to become an essential tool in your classroom. Diameter 50 mm