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I designed this diving tie to help James Bond escape from underwater environments. It looks like a normal tie, but it has a secret function.
Referring to the structure of portable oxygen bottle, there are several structures such as air bag, pressure relief hole, bite mouth, air charging hole and air pump. The interior is made of aluminum for aviation. Once you need to dive into the water for activities, you can take off the mini pump on the back of the tie and insert it into the tie's air hole to pump air. Inflating the tie seven to eight times can fill it with gas, enough for an adult to breathe underwater for five minutes.
Peng Yang ,