The product is a 3/32" steel key stamp marker with the designation "DO NOT DUPLICATE".

Made in the United States, this key stamp marker is a unit sold individually.

It is designed to be used in the field of facility maintenance and safety, specifically in the area of access control and locksmith equipment.

This marker serves as a tool for professionals to indicate that a key should not be duplicated, ensuring added security for the facilities or property it is used on.