Which of the following is NOT a characteristic of an improvised tourniquet?

An improvised tourniquet typically should not be made out of metal material, as metal can cause discomfort, and injury to the skin, and is often not flexible enough to properly encircle a limb to control bleeding effectively. Instead, effective improvised tourniquets are generally made from softer and more pliable materials like fabric, cloth, or plastic, which can conform to the shape of the limb and can be tightened appropriately.

The characteristics of a proper improvised tourniquet include being at least 2 inches wide to distribute pressure over a larger area, minimizing the risk of causing additional tissue damage. A sturdy windlass is also essential, as it helps apply and maintain the necessary pressure on the artery to stop the bleeding. Fastening devices are crucial to ensure that once tightened, the tourniquet stays in place and does not loosen, which could compromise its effectiveness.