pvbPVB: The PVB - Portable Vehicle Barrier is a light-weight, fully portable barrier for stopping a vehicle. A unique (patent pending) design utilizes the forward movement of the vehicle and transforms the barrier into a cantilever that "digs" into the road surface and stops the vehicle dead in its tracks. User friendly, the PVB can be stored in a vehicle or a small storage room and deployed by a single person quickly. The L shaped PVB can be deployed as a single row or in multiple rows to stop a very large vehicle. Additionally, there is a wheel attachment capability that can be added allowing the system to be moved easily once deployed. www.ssipvb.com