We had so much fun smashing these to bits cracking them open to show natures beauty inside of them. I think everyone should pick up a few boxes of these and have a fun activity the whole family old and young can enjoy. It took a few whacks with the hammer but it wasn't too hard to break and it was very stress relieving. More geode rocks in the box would be nice this activity goes by quickly and leaves you wanting more and more. My son loved the poster the most he is a reader and very visual person that part was right up his ally. My daughter didn't like the as she put it ugly safety glasses but they were nice add so that we didn't get rock dust in our eyes. I recommend everyone run out and get a few of these kits so they too can have an awesome family night.