This is a public lock from Nichiju Seisakusho AGE. Although it is unused, it has been stored, so there may be some minor dirt. However, I will clean it with alcohol before shipping. Please refrain from purchasing if you are overly concerned about this. Stainless steel Door thickness: 28-45mm Backset: 60mm PS433-CS The box is dirty, and to reduce shipping costs, I plan to use Yu-Packet Post Plus. There are no instructions, but you can easily find them online. Thank you.