This automatic remote control parking lock is made of high-quality paint to prevent corrosion. It is made of thick alloy steel. The outer cover is thickened and molded by die casting. The steel frame of the arc upper cover is firm and more compression resistant. The front and rear 180 ° real anti-collision, the support rocker can reverse and reverse through 180 ° anti-collision and counter pressure, the ultra long endurance dry battery, and the practical remote lifting control make it more convenient for you, the high pitched buzzer alarm prompts the abnormal entry of the vehicle owner, and the indicator will continue to flash red alarm. Product introduction: Production material: high temperature alloy steel Lifting height: 40CM Width: 45CM Falling height: 8CM Power supply mode: dry battery Waterproof performance: IP67 Anti collision performance: plus or minus 180 ° anti collision Intelligent remote sensing, operation within 25 meters Packing list: 2X remote control 2x keys 3x expansion screw 1x Instructions Note: This product does not contain batteries, please take photos carefully.