The amount of Stop the Bleed Kits needed is based on your lifestyle. If you're active like most readers here, you will want one in your vehicle, in your Go Bag, in your home, etc. The old wisdom of Better to have it and not need it applies here. Or One is None. Two is One philosophy. The most important aspect in knowing how many Stop the Bleed Kits to have is knowing how to properly use it, deploy a tourniquet to yourself or your buddy. You have 3 minutes to fix your problem if you have a severe arterial bleed.