Elevate your physics experiments with our versatile optical lens. With concave and convex lenses, providing a complete view of optical principles. Ideal for classroom use, it helps students grasp complex concepts through hands-on learning. Features -Color:Assorted Color -Material:Acrylic -Size:6.00X3.00X1.00cm/2.36X1.18X0.39in - Made of stable material, these optical lens are with high durability to withstand long time using. - Well polished, smooth surface, and does not hurt hands when used, you can use with much more confidence. - Lightweight and compact size, the optical lens is easy to carry and store. - These clear optical lens can help students learn and understand more obvious. - Practical teaching tools whether for students to learn about the feature of light or for teachers to conduct teaching. Package list: 1 x semicircular lens 1 x equilateral triangular lens 1 x biconcave lens 1 x biconvex lens 1 x convexo-plane lens 1 x planoconcave lens