DescriptionThis item is a color filter board, which is a good tool for teaching. Made of material for long time using. It is lightweight and small, so it's convenient for storage. These filter boards can be combined to create different effects, such as, cool effects, color correcting.Features- Color: Red, green, blue - Material: Plastic - Size: About 4.70X4.70X0.50cm/1.85X1.85X0.20in - It is made of good quality materials for durability. - Exploring property of optics and color, early physics optical science educational toy. - It helps children learn the color of different colors in combination. - It is lightweight and portable, so it's convenient for storage. - The product can effectively play the function of physical optical instrument.
