As the industry leader, Kwikset has provided trusted security for over 60 years and has become synonymous with security, peace of mind, style and innovation. SmartKey Re-key Technology allows you to control who has access to your home. Re-key the lock yourself in seconds in 3 easy steps. Have you recently moved or had a child lose a key. It's time to re-key. SmartKey provides the highest level of residential security and features BumpGuard to protect against lock bumping. Re-key kit Customized security For two alternate keys and four everyday keys