La traduction Française est en cours… Non–Impact Design Barrier Stores 9″ High to Escape Impact From Low Rear Impact Guards Barrier Sensor With Alarm Communicates Positive Lock Position HYDRA-FLOAT™ Barrier Automatically Adjusts to Truck Movement During loading Vertical Locking Hook Secures Virtually All Rear Impact Guards With In Excess of 32,000 lbs. of Restraining Force Simple Push Button Operation