The UNION Y-ES-DL-PB-2.5 ES-DL Essentials 3 Lever Mortice Deadlock in Polished Brass is a top-quality home security product designed to provide added protection for your property. With a case size of 65 x 72mm and a backset of 45mm, this deadlock is durable and reliable. The polished brass finish adds a touch of elegance to your door while the 3 lever mechanism ensures maximum security. Manufactured by UNION, a trusted brand in home security, this deadlock is a practical and effective choice for enhancing the safety of your home.