HDCRYSTALGIFTS 20mm Crystal Glass Prism Cube RGB Dispersion Optical Glass X-Cube Prism for Teaching Light Spectrum Physics Gift of Light

Our photography prisms all made from the clearest crystal k9 material, no bubbles, distortions or inclusions with quality.Each one is carefully checked, no scratches are allowed,thus ensuring maximum use in the next few years Size 0.8*0.8inch (2*2cm),nw 20g,please pay attention to the size, it's small.Packed in a nice gift box,which is perfect as a gift for anybody you want to share If the sun isn't shining, you can use a flashlight. Just position your prism so that the light shines through it, and there should be rainbows dancing on the opposite wall!The exquisite decoration on any surface or table of multi-dimensional cubes can bring distraction and fun Glass cube prism ideal for teaching of optics, science experiments, and for photography.Suitable for explore colorful spectrum or to add effects to your photos The compact design allows you to carry the cube with you, or even put it in your pocket. Take it out and exude a pleasant optical entertainment effect, everyone will enjoy and be fascinated