I did 3 flushes so far (Oct-10, Oct-19, Oct-29). First two flushes I passed 150+ stones. Third flush 100+. Most were tiny. Some pea sized, peanut sized, and almond sized. Biggest one was from flush #2, walnut sized, 1.5" by 1". It was big but it appeared to be 3 smaller stones completely merged together. All stones were green and soft. All floated in the toilet water.