COMBO PACK: Use on doors requiring a high level of security, includes a deadbolt and keyed entry knob, recommended for a low-cost exterior door solution SMARTKEY SECURITY: Kwiksets SmartKey Security technology protects against advanced break-in techniques and allows you to re-key your lock yourself in seconds LOW PROFILE DEADBOLT: Sleek, low-profile deadbolt is designed to blend seamlessly with your door, creating a clean look while providing trusted security KEYED ENTRY: Use on doors where extra security is needed, turn piece interior locking, exterior locking using a key. Recommended for exterior-facing doors MICROBAN PROTECTION: Kwikset's door hardware is treated with Microban, this offers powerful product protection that is 99.9% cleaner than an unprotected surface CONTEMPORARY DESIGN: Available in a sophisticated, modern door hardware style with simple, unique details to match your home décor FITS STANDARD DOORS: Fits standard size doors 1-3/8" to 1-3/4" thi