Features: Random Phenomenon Demonstration: This probability demonstration model combines metal and plastic materials to visually show random phenomena principles. Perfect for physics classrooms, it helps students understand probability distribution and unpredictable occurrences through hands on learning. Sturdy Construction: Made with premium metal and resilient plastic components, this teaching tool holds up well under frequent classroom use. It addresses the fragility concerns of traditional educational tools, ensuring lasting dependability for school environments. Simple Assembly & Portability: Featuring a modular design that requires minimal effort for setup or disassembly, this demonstration board is perfect for teachers moving between classrooms. Its lightweight build improves teaching convenience. Multi Scenario Application: Beyond physics classes, this adaptable model works well in science labs and extracurricular activities, sparking students' curiosity about scientific exploration. Appropriate for STEM education across various age levels. Visual Learning Experience: Transforms abstract theories into tangible observations through dynamic bead movements. Boosts engagement and understanding for visual learners during probability and statistics instruction. Specifications: Component: Metal, Plastic Size: Approx.30.5x40.5CM/12.01x15.94inch Quantity: 1 Pc Package Includes: 1x Dalton Board 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 color of the item.