Physical Optics Teaching Set for handson study of light, lenses, and basic optical principles. This compact kit provides clear, practical experiments that help students and hobbyists visualize refraction and image formation. Key benefits Demonstrates core optics concepts such as refraction, convex lens imaging, and concave lens behavior. Adjustable three way linear light source lets you control the light direction using a screwdriver for precise demonstrations. Durable ABS plastic construction for stable mounting and repeated classroom use. Compact, organized kit simplifies setup and makes experiments easier to run and repeat. What is included Biconvex lens Single concave lens Double concave lens Glass tile Triangular prism Complete physical optics set assembled in a single package Specifications Material: ABS plastic Color: as the picture shows Size: approx. 38 x 28 x 7.5 cm Package weight: approx. 380 g Package contents: 1 x Physical Optics Set Typical uses and scenarios Classroom demonstrations: Use the adjustable light source and lenses to show image formation, focal point behavior, and refraction in front of a group of students. Home STEM projects: Set up simple experiments to explore how lenses form real and virtual images, and how prisms bend light. Science fairs and lab exercises: Build repeatable experiments that illustrate basic optical laws and support lab reports or presentations. Notes Please allow 1 to 2 cm measurement variation due to manual measurement. Colors may vary slightly from pictures depending on monitor settings.