Homoyoyo 4 pcs Optics Experimental Equipment for School Three Primary Colors Teaching Instruments Brightness Demonstrator for Easy Operation Physical Teaching Tool for Engaging Student

Package Include 4 x Color Mixing Demonstrator Features - Color: Black light color experiment. - Battery: 3AA Batteries (Not Included) primary color light demonstrator. - Size: 11.00X8.50X12.00cm/4.32X3.34X4.72inch demonstration science light color. - Material: Plastic. - Convenient off/on and turn knobs to precisely control individual light colors light tricolor apparatus. - Made from plastic material, to use. Simple structure and easy to use primary color demonstration. - Good for science exploration labs, classroom exercises, science fair projects and more. - Perfect for students to use in the science classroom setting or in a exploration labs. - The brightness of each color can be adjusted. A good equipment for student experiments.Goods Informationprimary color demonstration It is safe, practical for school use.demonstration science light color The three primary colors mixing demonstrator is a wonderful experiment equipment for student to learn.light color experiment You needn't worry about its safety.primary color light demonstrator Made of , sturdy and material for long time use.light tricolor apparatus It can students' practical ability and thinking ability

• Primary color demonstration--perfect for students to use in the science classroom setting or in a exploration labs,demonstration science light color
• Demonstration science light color--the demonstration of the three primary colors can be performed,light tricolor apparatus
• Light color experiment--this color mixing demonstrator is simple to operate and the teaching interest,demonstration science light color
• Primary color light demonstrator--convenient off/on and turn knobs to precisely control individual light colors,demonstration science light color
• Light tricolor apparatus--visually demonstrate the principle of three primary color to make it easier for students to understand,demonstration science light color