This DoorJamm is clearly marked with "FIRE" on both ends on one side.

Firefighters and paramedics use DoorJamms to control door access while on the scene without needing to leave behind valuable equipment and staff to hold a door opened or closed. Use DoorJamms to properly control airflow and ingress/egress for many situations including room searches to prevent lockouts. Reduce property damage with no stress on hinges and other door hardware. 

The DoorJamm is versatile, stretches over 200% of its original size, is reusable, is easy to carry, and is weather and chemical resistant. 

It will withstand temperatures as hot as 212 Degrees Fahrenheit and as cold as -40 Degrees Fahrenheit. 

This product weighs approx. 1 ounce, can be stored nearly anywhere on your person or kit and allows you to carry multiples without being cumbersome. (Sold Individually)

DoorJamms are made of synthetic rubber in the USA.