The Gridlock Oval Mortice Deadlock Case is a sturdy and secure door lock mechanism, designed to provide added protection for your home or property. With a diameter of 75mm, this pack includes a single unit that is easy to install and gives you peace of mind knowing your property is safe and secure. Perfect for DIY enthusiasts looking to upgrade their door hardware, this deadbolt is a reliable choice for improving the security of your home. NO BOX.