No More Lost Keys, Lost Customers, Lost Time, Keys Left in Cars, Unlocked Cars or Key Boards! Attaches to side window quickley and securely. Box holds ignition and trunk keys. Vehicle stays locked, no loss of accessories. Each salesman has his own master key that opens all of the lock boxes, eliminating the problem of lost keys, lost prospects and trips back and forth to obtain the vehicle key. Made of polished aluminum, steel pins, weather proof gasket and padded backside. ***Note: lock boxes are strictly for the convenience of sales personnel, they are not considered as an anti-theft device.***