Stainless steel cylinder mortise lock 60mm x 3. Often used on aluminum sash sliding doors in schools and public facilities. I found this while cleaning my house. I opened it to check the contents. Although it is unused, it has been stored in a warehouse for a long time, so the outer box has scratches and damage. There may be small scratches and dirt. Please refrain from bidding if you are concerned about this. Thank you. Thank you for looking.