Concrete blocks to prevent vehicle parking on vacant lot left after the destruction of a building. It works like lego to store them. It can also be used to protect events. :
Buy Concrete Wheel Stops Online- Fast Shipping to select counties in FL, GA, AL, MS
84″ Standard Concrete Parking Curb – BC Site Service
Acton Precast Concrete Limited
Parking Block Wheel Stops |A C Pre-Cast Concrete Products