The stylish LokkLatch Magnetic Gate Lock with dual lock cylinders is the ideal choice for picket-style gates. It can be installed quickly and easily without any milling, hole-drilling or welding - it also allows up to 1/2 of vertical adjustment at any time during or after installation. Made from tough, engineering polymers and quality stainless steel components, LokkLatch will not rust or stain - ever. Its 6-pin locks can be re-keyed by a locksmith to match existing door locks for an integrated security system. Fits gate posts with a width of 1-1/2 to 6 and accommodates gate gaps of 3/8 to 1-1/4.