US WW2 white Tourniquet cotton strap and buckle.

The tourniquet was carried by medics and was issued as part of various first aid kits including the parachute first aid packet kit, the one you see strapped to para helmets in Normandy.

The tourniquet was a strap to tighten around a limb to stop the bleeding. It has a metal so it could be adjusted quickly when needed.

These replicas are made from white webbing with the correct metal buckle stitched on.

It even has a correct replica instruction label sewn onto it.