This DoorJamm is clearly marked with "FIRE" on both ends on one side.
The DoorJamm is versatile, stretches over 200% its original size, reusable, easy to carry, 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.