The barrier is constructed of layers of PVC material on a honeycomb structure and layers of rubber around its circumference. The barrier is able to receive three impacts at the same place without needing to be replaced and it returns to the original configuration after impacts with an equal amount of energy absorbed each time. The barrier for auto race tracks comes in two configurations, a 'standard' barrier and a 'reinforced' barrier. The reinforced barrier is identical to the standard barrier except it is wrapped in a double layer of smooth rubber facing or conveyor belt type material instead of one. For large installations the cost is less.
Installation is quick and easy.
Each weighs about 475 lbs and can be put in place with a forklift or a few strong men. The barriers are smaller for go-kart tracks. The elements form a continuous wall, and it is possible to join two or more layers to obtain a deeper barrier. Between the blocks there are simple connections, so it is rather easy to replace, during a race, a damaged element. In any case, the two layer barrier is able to perform satisfactorily for up to three frontal impacts in exactly the same spot.