I have first aid kits throughout my different vehicles and from hard experience I have learned that you really want to inspect them on a fairly regular basis. I had a bottle of sterile eyewash that leaked and ruined a bunch of stuff in one kit. I had to clean it all out and replace some items. I now put that type of thing -any liquids in a zip lock bag. If you have any of the snap ice bags in your kits make sure you put those in zip a lock bag also, I have had those leak too and the contents ruin everything and our difficult to clean out.