BloodBlocker trauma dressing from Hart Health is designed to aid in the control of heavy bleeding. Multi-purpose sterile, blood absorbent trauma compress with non-stick wound pad and removable pressure block. Compare to BloodStopper trauma bandage. Each single wound care dressing pack includes one compress dressing pad size 6″ x 4-1/4″ that unfolds to 6″ x 8-1/2″; and two gauze roll pressure blocks, 4″ x 4.1 yards each. Essential for your first aid kit.