Are all tourniquets the same?

No, the tourniquet has to be made of high quality, durable and non-breakable parts. It has to be wide enough, so it would not crush the surrounding tissues and stop the arterial blood flow. The tourniquet should consist of a sufficiently wide elastic band (minimum 4 cm) and a tightening mechanism. It can also be made of a wide elastic band with tightening indicators. Neither wire locking straps nor a leather trouser belt function as effective tourniquets.