
Colors are nice but there are too many similarities. In fact, there are only about 5-6 varieties of small spheres. I bought mine used from stock and the set I received only had 36 balls. I also received 5 instead of 4 large balloons. I didn't want to send them back. My son and I enjoy participating in marble racing tournaments and I bought these specifically so we could compete with distinctly different marbles. Not a complete failure, but it could have been better.

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