communistzebra:

odditymall:

The Kingii is an emergency life preserver that you can strap right to your wrist that inflates in seconds and brings you straight to the surface of the water.

http://odditymall.com/kingii-wristband-emergency-flotation-device

This is such a good idea and maybe the manufacturers should design a way to make it automatically inflate if someone passes out but idk how you would do that