Three Way Linear Light Source: The light direction can be adjusted using a screwdriver to set the orientation for precise optical alignment during experiments. Optical Experiments: Suitable for teaching and exploring light refraction and lens behavior, including lens refraction experiments. Lens Safety and Use: Lenses are safe to handle and designed for practical teaching use as part of an educational tool kit. Package Includes: Biconvex Lens; Single Concave Lens; Glass Tile; Double Concave Lens; Triangular... Applications and practicality: Classroom demonstrations of refraction and lens effects in physics lessons. Small group lab activities to examine focal lengths and lens properties. Home science projects to explore optics with a safe, reusable component set. Notes: The kit provides multiple lens types and a configurable light source to support handson learning in educational settings.