Survive pieces / Life-saving medical equipment

”Survive pieces”are a series of self-help products including Water purifier,folding buoy,medical box and some things like that, and each kind is about the same size as the business card(about 85mm*54mm).So it contains the following advantages: Compact and lightweight(It takes very small space), easy to carry(you can put them in your purse as your bank cards), esay to use(we easily know how to use it through its semanteme).Meanwhile,because of the series of products,we can choose one kind or several kinds according to our needs,other than all of them.More importantly,we mark each product in Braille so that they are also available to the blind