We sell some legit truama gear, but it is important to understand how to utilize these tools, which realistically takes some sort of training. Lots of folk with military/police/fire/first responder experience probably have a good base, but is is important to refresh youeself from time to time as well. We really recomend a TCCC (evidence based) class to familiarize yourself with what have become standardized tools and techniques for assessing and starting treatment, whether it be a potentially mortal wound or a bumpp on the head. Here are a few guys we reccomend:
School of Survival
Dark Angel Medical
Randall's Adventure & Training