These prisms are perfect for experimenting with light and sunlight for classroom corners or home activities. We like to take them out on sunny days, play with flashlights, and look at different objects through these prisms. They're a bit lacking in storage space - there are 3 crates for those four prisms, which is good, but if you use them and take them out of the crates a lot or frequently, you'll probably need some sort of alternate storage. We've tried taking some photos with it, but our capabilities don't match what's possible with these prisms. I have used them for art and science projects and think they will be useful for a few years before I find a new family to pass them on to for projects. many experiments and projects. The storage needs some sorting out to keep it safe for the years I anticipate using it, but the set is worth it.