Two SIDED DEADBOLT: Bolt is opened and closed by key from both the outside and the inside, use on entry doors with 2 bore holes as added security EASY INSTALL: Do it yourself, installs on any standard size door in minutes with just a screwdriver, no special tools needed, detailed directions provided SMARTKEY SECURITY: SmartKey security technology protects against advanced break-in techniques and allows you to re-key your lock yourself in seconds FITS STANDARD DOORS: Fits standard size doors 1-3/8” to 1-3/4” thick, the latch backset is adjustable from 2-3/8” to 2-3/4” with just a twist during installation MICROBAN PROTECTION: Door hardware is treated with Microban, this offers powerful product protection that is 99.9% cleaner than an unprotected surface WARRANTY PROTECTION: Our products are backed by a lifetime mechanical and lifetime finish warranty, see included warranty information for more details