My adult son choked today on french fries while I was driving on the freeway. He was not moving air and very scared. I pulled onto the shoulder and was able to frantically put it together and used it on him. With 2 plunges the french fries were out and he was breathing. It took a matter of seconds to put together and use it and he was moving air. Because of this device my son is alive! Thank god! It is definitely worth the money. I am going to buy more!