Features: Magnetic optics Lenses Set features 8 different magnetic optics lenses enables vividly demonstrations of light refraction and reflection principles through its innovative magnetic. Built with high transparency optics glasses and reinforced frames, this physics teaching tool utilizes advanced magnetic technology for secure whiteboard attachment during experiments. Ideal for STEM educators, university physics students, and science enthusiasts seeks interactive optics demonstration equipment for classrooms or home learning environments. Perfectly for laboratory experiments, school lectures, science project, and family educational activities requiring stable visual aid to explain complex light phenomena. This educational science set maintains optics accuracy through scratch resistant surfaces while offering versatile configurations to simplify light behavior studies across multiple age groups. Specifications: Component: Glass Color: Clear Size: Assorted Size As picture shown Weight: Approx. 100g Package Includes: 1Set Magnetic optics Lenses note: 1.Please allow 0-1cm error due to manual measurement. Be sure you donot mind before bid. 2.Due to difference between different monitors, the picture may not reflect the actual color