My Second purchase of this Item.. I really like that the Hard Case contains a Trauma Module AND a very well equipped First Aid Kit. I stopped to assist at a roadside accident and my Hard Case was in my other vehicle! :-( Fortunately the deployed Air Bags prevented serious injuries. to the front seat occupants. I was able to comfort a young woman and calm her mom as I was doing a quick evaluation while we waited for the EMT Van. My 'lesson learned'... Don't rely on putting a kit back and forth between vehicles. Be Ready! This will not happen again!