Ergonomic design: large triangular glass prism that is easy to hold, enhancing comfort and safety during demonstrations and experiments in physics education. Wide application: suitable for classrooms, labs, and home use; supports a variety of educational and experimental activities with a glass prism for education and a prism for light experiments. Kidfriendly handling: large size designed for easy handling by students, promoting safe and intuitive exploration of light and color. Educational clarity: provides clear light dispersion to aid understanding of optical principles; ideal for rainbow making and general optical education prism use. Key attributes: material is glass; shape is triangular prism; purpose is education with reliable dispersion performance. Use scenarios: Inclass demonstration of refraction and dispersion by splitting white light into spectral colors. Athome science activity to observe rainbow colors using sunlight or a flashlight. Science fair or group study to analyze dispersion angles and spectrum properties.