Anti-theft brass door lock cylinder

This is a high-quality, anti-theft brass door lock cylinder. 
It features an anti-pick design to enhance security. 
The cylinder is made of high-strength copper for durability and is resistant to corrosion. 
It is a standard Euro cylinder profile designed to fit a wide range of doors and locking systems. 
The product comes with AB keys, indicating a construction key function where the 'B' keys render the 'A' keys unusable after a single use.