All-in-One Set This comprehensive five-piece set contains the essential components: single-slit grid, double-slit grid, round-hole grid, mesh grid, and composite grid for a variety of optical experiments. Precise specifications Each piece features precise measurements with widths from 0.05 m to 0.20 m and varying spacings, designed to support accurate results. Educational use Suitable for both academic environments and personal projects; this set is intended for students, educators, and experimenters who value precision. Robust construction Made from durable plastic that withstands numerous experiments without compromising performance. Use scenarios - Classroom demonstrations of diffraction and interference using single- and double-slit grids. - Student lab work to observe fringe patterns and explore the relationship between slit width, spacing, and diffraction. - Hobbyist projects and self-guided experiments to study optical phenomena.