Bests & Worsts Reviews from Amazon

I bought these blocks for my son for his birthday. The first time we played with them, I dumped the bag on the floor to take out the blocks. I look up and see my son spit something out and it was one of the rings pictured! The tiny rings do not go to anything - no idea why or how they got into the bag. My son could have choked. Inspect the bag before playing with these.