Abstract: The invention relates to a tag (1) comprising a shackle (4) mounted directly adjoining a sliding part (3), whereby said shackle in its locked position forms a closed circle together with the face of the wall of the tag housing (2). A locking element (5) positioned inside the housing in its locked position preferably clicks into both the sliding part (3) and the end of the shackle (4), thereby locking same in said position. In the locked position, the locking element (5) is pushed against a retaining cam (11) arranged inside the housing. If during an attempt to open the tag the sliding part (3) or shackle (4) is pulled and a certain pull force is exceeded, the built-in breakage area (12; 15) in the housing tears, thus providing clear, unambiguously and irreversible evidence of the attempted manipulation. This type of tag is especially suited as safety lock or safety seal.

Abstract: A pull-through lead security seal has a base body and a tongue protruding out of the base body. The tongue can be inserted through a pull-through opening located in a housing part which is connected to the base body. A retaining insert is also located in the housing part. A predetermined breaking point, in the form of a preferably continuous groove, is situated between the retaining insert and the base body or the housing part. In the event of an attempt to tamper with the lead seal, that is, if somebody attempts to open the closed lead seal by pulling on the tongue, this predetermined breaking point breaks, detaching the retaining insert in the housing part so that it moves freely within the walls. A tampering attempt of this type can therefore be detected by a simple, superficial check.