The rocks are tiny, much smaller than I expected. Would need a magnifying glass to study them properly. The case is a little smaller than a deck of cards. They are however well labelled and neatly arranged in their little plastic case. The plastic case and rocks arrived safely and in good condition. Was a little frustratedthat the vendor had stuck a large product barcode on the front of the case which obscured the view of about half of the display. It peeled off but only in tiny pieces and left sticky residue. Luckily, with a bit of effort I was able to clean it off and the case now looks good. I was however glad the barcode was not put on the bottom of the case as that would have likely torn off the information about the rocks that was printed there.