This physical optics experiment kit contains precision optical parallel mirrors and lenses designed for classroom and laboratory use. It combines durable materials, careful machining, and compact storage to support a wide range of light focusing, reflection, and refraction experiments. Key features Precision craftsmanship: Mirrors and lens edges are cut and polished for smooth surfaces and imaging quality, supporting accurate demonstrations and measurements. Durable material: Lenses are made from PP material that is lightweight and wear resistant for long term use. Comprehensive set: Includes optical parallel lenses in multiple sizes and focal lengths suitable for light focusing, reflection, and and refraction experiments. Protective storage: Supplied dust box and portable bag keep components organized and protect optics during transport and storage. Clear sizing: Kit dimensions 15 x 13 cm (5.91 inch x 5.12 inch) for compact placement in lab trays or backpacks. Package contents: 1 set Physical Experiment Why this kit helps Makes core optics concepts tangible: Precise mirrors and lenses let students and researchers observe focal points, image formation, and ray behavior with minimal setup. Reduces setup time and damage risk: Ready to use components plus protective storage speed transitions between lessons and preserve component condition. Versatile across levels: Suitable for teaching demonstrations, laboratory exercises, and instrument calibration where parallel optics are required. Typical applications Classroom demonstrations of reflection and refraction such as showing how rays converge through lenses and how images form on screens. University optics labs and research setups for focal length experiments, beam alignment exercises, and basic imaging tests. Calibration and alignment tasks for precision instruments that require controlled, repeatable reflections and focusing. What makes it stand out Balanced combination of precision finishing and durable PP construction for repeated handling in instructional settings. Multiple lens sizes and focal lengths in one compact kit allow instructors to demonstrate a range of concepts without sourcing separate components. Included dust box and carrying bag protect components and simplify storage and transport between classrooms or lab benches. Contents and specifications 1 set Physical Experiment Kit dimensions: 15 x 13 cm (5.91 inch x 5.12 inch) Materials: PP lenses, polished parallel mirrors This kit is intended for use in physics and optics teaching, scientific research, and instrument calibration where parallel mirrors and lens experiments are required.