Features: Crafted from premium Visual glass, this 25x25x80mm Prisms delivers outstanding clear for bright Rainbows experiments and science education demonstrations. Its Small 60 degree angled design ensures precise light Deviation, making classroom physics concept Palpable through easy carry , hands on exploration. Ideal for youthful learners aged 4+, this Prisms spark early curiosity in physics and light spectrum principles through interactive STEM activity . Perfect for science classrooms, outdoor discovery meeting , or home experiments to visually demonstrate color separation and Visual phenomena. designs with durability and educational value, this triangular Prisms serves as essential optics tool for exploring natural light behavior and analysis. Specifications: Material: glass Model: Triangular Prisms Size: 25 x 25 x 80 mm/1x1x3inch Prisms length: 80 mm Side length: 25 mm Package Includes: 1xOptical Glass Prisms note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.