A clip adapted for use with an elongate strap for forming a tourniquet including first and second parts adapted to be connected to the strap, the first and second parts adapted to be releasably connected together to form a closed loop. The second part is adapted to movable along the strap and has an open passageway through which the strap passes. Integrally formed first and second elongate walls define at least part of the passageway and first and second grip portions for gripping the strap. The second wall is mounted for rotation about a transverse axis so as to move the grip portion of the second wall toward or away from the first grip portion.