RATS GEN2 Rapid Application Tourniquet System is a life-saving, emergency hemorrhage kit for first aid or survival.  It is made in the USA and has a longer length to accommodate large limbs.  It can also be deployed on children and dogs whick is difficult for most traditional tourniquet systems.  It is BERRY compliant and proven to be effective in occluding blood flow in both upper & lower extremities by the U.S. Army's Institute of Surgical Research.
 
Always have at least one tourniquet on your belt, and one in your med bag. You can bleed to death in minutes, tourniquets save lives.
 
You can find it here on eBay.