Crafted with translucent material, these color filter boards are great for teaching optics and physics concepts. Their ergonomic design, ensures easy handling during lessons or activities. They help students grasp the principles of light refraction, color mixing, and visual in an engaging way. Features -Color:Multi -Material:Acrylic -Size:15.00X6.80X0.10cm/5.89X2.67X0.04in -Primary color principle: based on the primary color principle, this tool significantly improves children's ability to recognize colors and sparks their creative imagination -Interactive teaching tool: designed with colorful translucent sheets, it is great for interactive teaching in different lighting environments -Science exploration: encourages children to explore mixing and changes, promoting a scientific -Easy to carry: lightweight and portable, ideal for use in homes, kindergartens, and outdoor education activities -Vibrant: the colors do not fade, maintaining their vibrancy for longterm education use Package list: 8 x color paddles