泳联 / United swim ring

After the occurrence of a shipwreck, people falling into the water . Even the lucky ones can get swimming laps, they will be soon separated by waves. Which brings a huge problem for the the searching and rescuing activities. "Union is strength" is the main idea of this design. Lying in make large numbers of swimming laps joined up available. The line around the swimming laps can be easily connected by the metal ring button. Which can insure large amount of drowning men stay together. For one thing, it is benefit for searching and rescuing. For another, it helps to against the shock of the waves.