Self-settable PIN, a door lock guard with 10,000 possible combinations. I bought this to install at home, but I'm selling it because I started using something else. I removed two staples, but it's unused. - Brand: Nomura tec - Model Name: Second Lock - PIN Setting: Self-settable - Number of Combinations: 10,000 - Applicable Door Thickness: 10-15mm - Applicable Door Frame Thickness: 35-42mm - Applicable Door Width: 65mm or less Thank you for looking.