Each top comes with a launcher. Fit the top on the launcher, turn the launcher clockwise 2 or 3 times, and release... The built-in led lights turn on as soon as the top starts spinning. It's fun to watch it spinning and flashing. It can be played with at any time and any place, and it's especially fun to play in the dark.
It's available in 4 different colors, and the color of the launcher may not always the same as the top.
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