Aquapac WaterProof Keymaster Case is ideal for keeping keys, cash, car immobilizers and credit cards protected in all whether conditions. Also great for keeping asthma inhalers safe. Guaranteed 100% waterproof to 150ft/50m (dust and sand-proof too!) The Aquapac Keymaster Case will float safely if it was to be dropped into the water. It comes with a detatchable neck cord. The dimensions of the aquapac keymaster case are: height: 90mm/3.5inch and length: 155mm/6inch