Blaze Barrier is an activatable line that forms a protective barrier around the user's home. No more need to dig trenches. Washington-based designer and engineer Jacob Schuler has come up with an alternative in the form of “the world's first fire line in a box.” Barier is presented as a chain of 15 and 30.5 meter long modules. Each is filled with a non-toxic powder based on monoammonium phosphate, which is used in fire extinguishers and fertilizers. When a forest fire warning is received, the user attaches one end of the Blaze Barrier line to the ground and spreads the remainder along the intended path of the fire. The entire process takes less than 1 minute. When the fire reaches the barrier, the wick on each module ignites, activating a small explosive charge. This causes the flame retardant powder to fly 1.5 meters in both directions, extinguishing the flames on one side and preventing them from spreading to the other. The spent powder can be left to biodegrade. The author of the project notes that the modules are activated only when in contact with fire, not when heated. If the threat has passed, the device can simply be put back in the box until the next time. The Blaze Barrier is available for pre-order on Kickstarter for $195 for a 15.25m kit and $395 for a 30.48m kit.