Triangular optical prism for physics demos, STEM learning, and creative photography effects

Made from K9 optical glass crystal; inspected for clarity and imperfections

Hand-sanded, polished edges for consistent quality and comfortable handling

Optical specs: flatness λ/6, surface quality 40/20, angle tolerance 6′, dimension tolerance 0.01–0.1 mm

Size: 30 × 30 × 60 mm (slightly wider—easier to grip for kids and educators)

Creates vivid rainbows by refracting and dispersing light; perfect for children’s light experiments

Also produces striking refraction/“fractal-style” effects for photographers

Comes in a padded, satin-lined protective box for safe storage

CE certified for safety and conformity