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The LED Swim Ring, a new design which might be an amazing invention of tools for shipwreck rescue. As we all know, when people out there into ocean are in trouble at night, there comes a hard problem—how to make sure if there are victims still stay. To solve it, these LED lights which need just a little power to run will sign the emergency signal as soon as possible so that the victims can be found at time.What’s more, the special swim ring is different from the others also because some more rings can be linked to each other.