Physics Optical Experiment Set Multifunction Reflector Refraction Triangular Prism Convex Lens Concave Mirror Dial Linear Light Source Teaching Demonstration Equipment for Teacher Student Education auspowers_batchtwo Add another metal wash behind

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Physics Optical Experiment Set Multifunction Reflector Refraction Triangular Prism Convex Lens Concave Mirror Dial Linear Light Source Teaching Demonstration Equipment for Teacher Student Education auspowers_batchtwo Add another metal wash behindPhysics Optical Experiment Set Multifunction Reflector Refraction Triangular Prism Convex Lens Concave Mirror Dial Linear Light Source Teaching Demonstration Equipment for Teacher Student Education Specifications Material: acrylic Package Size: 24cm14cm2. 6cm(9. 455. 511. 02 inches) Batteries Needed: 2 pieces AAA batteries (NOT included for safety) Suitable for: Teacher junior high school students Optical Experiments: refraction of light, convex lens