The Era Viscount 5 Lever Mortice Deadlock Door Lock in Satin Chrome is a high-security option for security doors. This contemporary door lock, made of aluminium, comes with hardware, instructions, and a key for easy installation. With a 5-year manufacturer warranty and a cross bore diameter of 56mm, this unit offers peace of mind for your home or business. Its sleek silver finish and reversible door handing make it a versatile choice for any situation. Made in the United Kingdom by ERA, this door lock is a reliable and stylish addition to your property.