... prevent and politely dedicated parking spaces occupied by other vehicles, and may play a certain vehicle anti-theft ... hole of diameter 10mm;In 3, floor holes into the M8mm expansion screws, onto the parking lock, ... of informationIn 1, after installation, you can put into normal use;In 2, when the parking car free ... reduced to the low, square can be pulled into the parking lot;In 4, the car left, ...