The Schlage L9050/60/70/71 Mortise Office Lockset is a high-quality commercial door hardware designed by the reputable brand Schlage. This lockset is suitable for commercial use and comes in a sleek satin chrome color. It includes all necessary hardware for installation, making it convenient for businesses looking to upgrade their office security. With its durable construction and reliable performance, the Schlage Mortise Lockset is a dependable choice for any high traffic commercial establishment school hospital, medical offices and universities. there is no key included, and they are Primus cylinders.If you purchase all four, I will include one master key