Apply extra pressure to slow down bleeding and increase the hemostatic effect.6 inches, double-layer aseptic vacuum packaging, small and lightweight.Integrate design: includes pressure applicators, non-adhesive pad, elastic dressing and closure bar.Easy to operate: the injured can be bandaged with one hand.Ideal use for indoor, outdoor, home, workplace, ambulance, IFAK, earthquake , life-saving and other traumatic bleeding injuries.