AB Negative Blood Type Marker

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The AB Negative (AB-) Blood Type Marker is a two marker set from Hazard 4 that is used to signal your AB Negative blood type. One marker is should be worn as a boot lacer, the other can be attached to your gear using the included carabiner.

The use of blood type markers by those operating in threat filled areas has been proven to save lives. When accidents or threats happen and major injuries occur, the speed in which a blood transfusion is performed can mean the difference between life or death. By wearing these markers, you will be providing first responders with a strong visual indicator of the blood type you need.


  • 3D Injection Moulded Rubber Construction - Ultra Durable Design
  • Two Markers Included - One for Boots, One for Mounting with Carabiner
  • AB Negative (AB-) Blood Type Designated
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