The rocks arrived safely and in good condition. They were much smaller than I was expecting - it was hard to tell from the picture that they would be so tiny! There is however a good variety and they are nice and smooth (well polished), so although they aren’t very good for the purpose I bought them for (to help my nieces identify and learn about different types of rocks and minerals), they should work well for art projects. They look like they are light enough that they would stick well to art work. The rocks are delivered in their own little clear plastic box with a removable lid. There is a little piece of black foam at bottom of the box. I would say there are about 2 tablespoons of little polished rocks and minerals in the little box.