Easy to use in schools: removable and quick to assemble and install, enabling fast setup and teardown between classes. Stable and precise construction: large lengthened base, very clear scale, and fine workmanship to support reliable optical measurements. Educational fit: ideal for middle school classroom physics learning; not suitable for children under 3 years old. Equipment scope: middle school physics laboratory equipment designed for performing optical experiments with this optical set. Use scenario 1: Inclass demonstrations of basic optical concepts such as light paths, alignment, and simple lens behavior using the kit. Use scenario 2: Student handson practice in assembling, aligning, and measuring optical components as part of lab activities. Use scenario 3: Supplementary setup for science fair projects or classroom experiments requiring a compact, reliable optical experimentation tool.