I made a Universal Tourniquet. This can be used to stop the blood flow if something happens to a body part. If a vein were to pop due to the increase in altitude this will let them stop the blood flow and patch up the wound. If they are on mars and someone gets injured they can strap this above the wound and fix it their. This design uses FLEX filament to print the tube and uses PLA for the body. The tube is pinched in the ½ square hole. The tube runs through and is able to be adjusted to fit a leg or a arm.