The tourniquet for sale is a true one-handed tourniquet and the tourniquet has been proven completely occluded blood flow of an extremity in the event of a traumatic wound with significant hemorrhage. The high quality tourniquet utilizes a durable windlass system with a free-moving internal band providing true circumferential pressure to the extremity. Once the medical tourniquet was adequately tightened, bleeding will cease and the windlass is locked into place. Tourniquet can effectively and quickly stop bleeding, reducing blood loss. And the high quality tourniquet has the advantages of small size, easy to carry and storage. And can be one-handed operation, even if one person outside the emergency situation can also take timely measures by the tourniquet.