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There are quite a lot of climbing fans. However,few of them ever realize the invisible dangers and the lack of preparation to self-saving. With single hand operating,this alpenstock can release signaling ballon, alerting rescuers in the premiter.The ballon lasts long up in the air, increasing the survival rate. In addition, compressed helium gas is stored in the stick,whihch inflates the ballon after the cap is manually opened. Even in the dark,illuminous powder on the ballon provide rescuers visibility to ensure the trapped could be seen.
Zhejiang Shuren University
Hangzhou, China
Zhejiang Shuren University
Hangzhou, China
Binbin Gong,Zhuolin Shi,Mengbi Pan,Cenglin Zhu