![X-Laser USA on Twitter: "#WednesdayWisdom Laser beams must be 3 meters (~10 feet) above the floor where an audience can stand, for safe and legal shows. Any laser safety questions? Just ask X-Laser USA on Twitter: "#WednesdayWisdom Laser beams must be 3 meters (~10 feet) above the floor where an audience can stand, for safe and legal shows. Any laser safety questions? Just ask](https://pbs.twimg.com/media/DaghnFkVQAEkcTv.jpg)
X-Laser USA on Twitter: "#WednesdayWisdom Laser beams must be 3 meters (~10 feet) above the floor where an audience can stand, for safe and legal shows. Any laser safety questions? Just ask
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Woman keeps 3-meter-long hair - Headlines, features, photo and videos from ecns.cn|china|news|chinanews|ecns|cns
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