Optical equipment set for middle school physics laboratory experiments Large and longer base with a very clear scale Provides stable support and precise alignment for optics experiments Clear scale facilitates accurate measurements and quick setup checks workmanship and quality assurance Built for reliable classroom performance and durable daily use Crafted to maintain alignment and repeatable results over time Removable and easy to assemble and install Flexible configuration options for different experiments Quick to set up, adjust, and reconfigure between activities Ideal for middle school physics learning Supports teacher demonstrations and student handson activities Helps students visualize and investigate optical concepts in a structured way Safety and age guidance Not suitable for children under 3 years old Practical use scenarios Classroom demonstration: Teacher uses the large base and clear scale to show light paths, measure distances, and illustrate basic optical principles with clear, reproducible results Studentled lab activity: Students assemble and reconfigure the set to explore how changing the arrangement affects light behavior and measurements, reinforcing inquirybased learning Flexible optics stations: Easily removable modules allow quick creation of multiple workstations for different topics or groups, enabling efficient use of classroom time and resources