Great Fun Stuff
I got this set about a week ago and my kid's eyes lit up when they saw them.  The enjoy playing with them a lot.  Spikes on the balls are not sharp but give good sensory feeling.  The ball is light, squishy and bouncy and the rings are more heavy sturdy built but still have some flexibility to it.  I kept one set for myself to keep at my work desk (to squish & smash) when I'm thinking or dealing with some stress.  My box came with the 3 balls and 3 rings all in the same 3 colors: Green, Pink, and Blue.  The box does show Orange and Yellow options so not sure if those are random or what but what I got matches the pics in the listing.  When I first opened, the new 'plastic' smell was strong but a week later, the smell has faded away and not a problem.  Overall, good quality and very useful.  I can see these being used and lasting a long time.
Rating: 5 stars