these are cooling system test strips..........they give you an insight into the temperature your radiator will start to freeze.............there are 49 strips remaining out of 50.............likely older stock..........nothing on it shows an exp date..............there is a number on the cap.........010815a............not sure what that means...........anyways the price for these is about half of what i see online.......................all intl shipping will be refunded to the lowest price with tracking for your country..............many are $10 to $15.............
