Consumer clear pack. Grade 1 security. Chelsea entry handleset with Cameron knob interior and SmartKey single cylinder deadbolt. SmartKey cylinder eliminates traditional pins and springs. Cylinder design provides instant re-key functionality. SmartKey cylinder is a bump-resistant, higher pick-resistant lock. Included with each lock is the re-keying learning tool that allows the lock to be re-keyed in 3 easy steps. Fits all standard doors 1-3/4" up to 2-1/4". Not designed to be used on 1-3/8" thick doors. Standard adjustable backset 2-3/8" - 2-3/4". Requires 2-1/8" or 1-1/2" deadbolt cross bore hole, 2-1/8" handleset cross bore, and 1" diameter throw bolt hole.