In this chain reaction, Flippycat sets up 60 big dominos each containing 990 dominos, and a small field of 600 dominos (which says 60,000) to bring the total up to 60,000 dominos used.
The big dominos span about 14 feet across. It took approximately 65.5 hours to complete over 8 days. In the setup footage, the counter changes color on each day.
The entire setup fell in approximately 12 seconds.