About This

• Teaching apparatus:used in scientific experiments, classroom demonstrations, laboratory use, etc,teaching lens
• Middle school prop:widely applied in home, laboratory, middle school, training institution, research institute, etc,physical experiment equipment
• Optical glass bricks:with it, you can easily let your students or grasp the principle of glass refractive index calculation formula,physical learning materials
• Optical glass lens:it is a helper for teachers, parents, train teachers, professors, researchers, etc,teaching prop
• Trapezoidal glass brick:it can be used to measure and calculate the ​​refractive index of the glass objects,experiment equipment