[Easily complete optical refraction experiments] Plane mirror reflection, diffuse reflection, convex mirror reflection, concave mirror reflection, refraction of light, convex lens refraction, lens refraction, triangular refraction [Children can easily the physical optics knowledge of refraction and reflection] The physical optics experiment set can clearly demonstrate the change in propagation direction of light when it enters from one medium into another medium, thereby causing the phenomenon of light deflection at the junction of different media. When light propagates to different materials, it changes the direction of propagation at the interface and returns to the phenomenon in the material. [Easyly the physical optics knowledge of refraction and reflection] The physical optics experimental device can clearly demonstrate the change in propagation direction of light when it enters from one medium to another, thereby causing the phenomenon of light deflection at the junction of different media. When light propagates to different materials, it changes the direction of propagation at the interface and returns to the phenomenon in the material. [Quality Manufacturing] Three-way laser light source, the light is bright and clear, and the can be adjusted freely. The prism lens is made of acrylic material, which has very good light transmittance and obvious refraction effect. Colour:As Shown Material:plastic Package Contents: 1 x Optics Experiment Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.