K9 Optical Glass Triangular Prism 25x25x80 mm Compact, precisioncrafted triangular prism made from opticalgrade K9 glass. Designed to refract white light into a clear spectrum rainbow for teaching, demonstrations, photography, and handson learning. Key benefits Clear visual demonstration of light refraction and dispersion, ideal for physics lessons and STEM learning. Opticalgrade K9 glass provides transparency and consistent light transmission for distinct color separation. Precisely cut and polished faces ensure accurate angles and minimal internal distortion for reliable results. Portable 25x25x80 mm size balances visibility with easy handling and storage. Versatile for use with common light sources such as sunlight, LED lamps, and flashlights. Thoughtful gift or educational tool for children and students interested in science. Main features Material: K9 optical glass for stable optical performance. Shape: Triangular prism with three polished rectangular faces. Dimensions: 25 x 25 x 80 mm. Function: Refracts white light to produce a visible spectrum rainbow for observation and experiments. Useready with no assembly required. Practical use scenarios Classroom demonstration: Place the prism in a beam of white light to show refraction and dispersion during optics lessons. Students can observe wavelength separation and discuss how prisms work. Science projects and fairs: Use as a core component in experiments that investigate light angles, refractive index, or color composition. Its consistent performance supports repeatable results. Creative photography and design: Position the prism near a light source to generate rainbow effects and color flares for portraits, product shots, or creative lighting setups. Care and handling Handle with care to avoid drops and scratches. Clean with a soft, lint cloth and mild lens cleaner if . Store in a protective case or padded box to preserve polished surfaces. This prism is a practical, durable optical tool for educators, students, hobbyists, and creatives who need a compact, reliable way to demonstrate and explore light dispersion and spectra.