Power Hawk Technologies has developed a device that can stabilize vehicles in seconds called AUTO CRIB-IT. The automatic stabilization tool is gas-spring activated for rapid deployment and automatic re-adjusting during operations. It is taller than most step chocks, adjustable up to 17 inches in height. It is also super compact, leaving storage space for other vital equipment. It can be positioned completely under and parallel to rocker panels to avoid trip hazards. They are made of lightweight high-strength aluminum and can be easily decontaminated. For more information go to http://www.powerhawk.com/products_auto_crib-it.html