A device in the form of a narrow strap intended to be wrapped and manually tightened typically around a patient's arm to control/stop blood flow during collection of blood from a vein; it may additionally be used with a pressure bandage to apply pressure to a wound. It typically includes an adherent layer (e.g., Velcro) and/or a buckle mechanism for fastening/locking that allows adjustments to the degree of tightness; it is not fastened via a rotating handle mechanism (i.e., not a windlass). This is a reusable device which might be intended for single-patient use.