iplusmile 60pcs Double Convex Lenses, 25mm Diameter, Clear Acrylic Spherical Optical Lenses with Ground Edges for Physics Labs and Classrooms

✅✅✅Well-polished, the surface is smooth and safe to use, allowing for peace of mind. 25mm diameter biconvex lenses, clear acrylic spherical optically processed glass lenses with polished edges, for physics labs and classrooms. ✅✅✅Made with high-quality materials, these optical lenses are durable enough to withstand long-term use. Our 3D lenses have a wide viewing angle and are suitable for reading newspapers, books, magazines, maps, science, gems, inspections, rocks, and handicrafts. ✅✅✅These clear optical lenses help students learn and understand principles more concretely and clearly. These lenses are useful for reading grocery store labels, restaurant menus, bottles, and other items printed in fonts that are too small to read. ✅✅✅The lightweight and compact size of these optical lenses makes them easy to carry and store, providing great convenience. They are easy to store and can be easily placed on a desk or in a bag. Please note that the protrusions on both sides of these lenses are different, with one side slightly larger and the other slightly smaller. ✅✅✅A practical teaching tool for students to learn about the properties of light or for teachers to teach. This biconvex lens makes a great gift for grandparents who are .