http://www.homedepot.com/p/Kwikset-Tustin-Polished-Brass-Exterior-Entry-Lever-and-Single-Cylinder-Deadbolt-Combo-Pack-Featuring-SmartKey-991TNL-3-SMT-CP-K4/203228657
http://www.homedepot.com/p/Kwikset-SmartKey-Re-Key-Kit-REKYG-KIT-CP-SMT-KW/202279362
Locksmith 每次Rekey 费用 $60 ~ $90,比换锁还贵。