Companies in the defense, aerospace and commercial industries are using new products that are designed to stop vehicles from getting away, according to Pacific Scientific Materials Company, a manufacturer of anti-getaway products. These include such things as the anti-terror road blocker, which is a popup blocker that is buried 40 cm in the ground but deploys to a height of 60 cm when triggered. Another example is the Pit-BUL, which resembles a speed bump but is fitted with a deployable net that can tangle the front tires of an escaping vehicle.