manual parking lock,parking barrier size:500*185*55mm and 600*195*65mm manual parking lock,parking barriersize:500*185*55mm and 600*195 ... : made of metalInstallation position: Fixed in front of parking space,about 0.8 meter away.Installation method: adopt ... parking lock Advantages: agile and convenient,when the rocker down,it will hidden inside of bottom,effective bear external rolling. parking barrier ...