Kwikset Signature Series Juno Entry Knob Featuring SmartKey Grade 2 security entry knob with SmartKey cylinder. 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 1-3/8 up to 2 . Standard adjustable backset 2-3/8 2-3/4 . Requires 2-1/8 diameter lockset bore hole and a 1 diameter latch hole. Has an adjustable backset 2-3/8 . Knobs are keyed alike in multiples of 4. Finish Polished Brass, Backset 2-3/8 In. or 2-3/4 In., Security Level Grade 2, Exterior Access Key, Interior Action Turn Button, Pkg Qty 1, Package Type Clamshell