Features: The Electric Color Disk dynamically demonstrates light blending through high speed rotation, offering engaging hands on science experiment for exploring optical principles and color theory. Crafted with plastic and metal components, this physics teaching tool ensures intuitively demonstration in classroom or home environments, designed to withstand frequent educational use. Ideal for school physics teachers and STEM educators seeks interactive demonstration equipment to visually explain light spectrum concepts to students aged 12-18. Perfect for classroom demonstrations, science projects, and home learning environments, this rotating color wheel creates vividly visual effect that simplify complex physics concepts. The motorized operate eliminates manual rotating inconsistencies, delivering stable rotational motion that maintains student engagement while aligning with curriculum standard for optics experiments. Specifications: Component: Plastic, Metal Color: As picture shown Size: Approx. 8x12x9.5cm/3.15x4.72x3.74in Weight: Approx. 400g Package Includes: 1Piece Electric Color Plate note: 1.Please allow 0-1cm error due to manual measurement. Be sure you donot mind before bid. 2.Due to difference between different monitors, the picture may not reflect the actual color