As small as it is, the WaterBuoy Inflateable Key Ring is quite strong and will lift items up to 2.2 lbs. (1kg) of dry weight. It can be used to protect many of your valuable items, from keys, to cameras, to fishing tackle, etc.
Featuring an integral light, the WaterBuoy is visible at night with its unique and patented flashing light that will last for at least 24 hours.
The unique patented trigger mechanism of the WaterBuoy is designed to activate the device after only seconds of submersion in normal temperatures. This means that your valuables won't drift too far or sink too far before they resurface.
It is also designed to minimize the chance of accidental activation -- the WaterBuoy must be submerged; splashing will not set it off.