Piece of theatrical hardware designed to keep a rolling platform in a stationary position.
http://www.mutualhardware.com/Theat...age-Hardware/Wagon-Brakes-shown-with-spindles
http://www.rosco.com/us/hardware/wagon.cfm
http://www.mutualhardware.com/Theat...age-Hardware/Wagon-Brakes-shown-with-spindles
http://www.rosco.com/us/hardware/wagon.cfm