Self-inflating keyring for items weighing up to 80g.
When keys fall in the water, Key Buoy pops open and its air tube inflates to 36cm
Tube carries keys to the surface for easy retrieval.
Stays afloat for over an hour.
Rises to the surface as fast as 60 secs.
Measures 61mm X 41mm X 15mm. 31gm.
Activator is sodium bicarbonate and tartaric acid, a mild irritant.