A theft deterrent device includes a locking portion and a housing portion. The locking portion includes a locking mechanism. The housing portion includes a housing portion wall. The housing portion wall comprises a first material and is configured to house a second material within the housing portion wall. The second material is made of a different material than the first material. The second material is selected such that a cutting tool will be hindered when trying to cut through the housing portion.

A pressurized chemical theft deterrent device includes a locking portion and a shackle. The locking portion includes a locking mechanism. The shackle includes a shackle wall. The shackle is configured to house a chemical deterrent within the shackle wall. The chemical deterrent is pressurized while being housed inside the shackle such that a breach in the integrity of the shackle wall causes an aerosolized release of the chemical deterrent.

A pressurized chemical theft deterrent device includes a locking portion and a shackle. The locking portion includes a locking mechanism. The shackle includes a shackle wall. The shackle is configured to house a chemical deterrent within the shackle wall. The chemical deterrent is pressurized while being housed inside the shackle such that a breach in the integrity of the shackle wall causes an aerosolized release of the chemical deterrent.

An anti-shoplifting plate with an alarming liquid is used on an anti-theft device of the type called pin. The plate is composed of a lid and a base, as well as by a nail, which includes a head and a needle. The needle penetrates a bulb, n the plate where one or more vials are positioned and contain colored alarming liquid that, in the case of a break-in attempt, release the liquid contained causing the coloring of the product and making it unusable and dirtying the hands of those trying to tamper with it. Such a plate is provided for a conformation of the seat to accommodate the vials on the base that allows adjusting the effort required to cause the breakage of said vials when a break-in attempt is made on the anti-theft device by a dishonest person.

A pressurized chemical theft deterrent device includes a locking portion and a shackle. The locking portion includes a locking mechanism. The shackle includes a shackle wall. The shackle is configured to house a chemical deterrent within the shackle wall. The chemical deterrent is pressurized while being housed inside the shackle such that a breach in the integrity of the shackle wall causes an aerosolized release of the chemical deterrent.

The invention concerns a device for marking a commercial article, comprising two separable parts: a first part (12) including an axial spike (14), a second part comprising an orifice for axial insertion of the spike and means for locking the spike inserted in said orifice. One of the parts, referred to as the attachment part, comprises an attachment: member (32) that is able to pivot between a first position in which a free end of the member is far away from the attachment part and a second position in which the free end is disposed in a housing (50) of the attachment part. The attachment part is configured so that the free end (32a) of the attachment member is blocked in the housing (50; 108) by the presence of the other part of the device that is locked to the attachment part by way of the spike (14) and its locking means.

An anti-shoplifting plate with an alarming liquid is used on an anti-theft device of the type called pin. The plate is composed of a lid and a base, as well as by a nail, which includes a head and a needle. The needle penetrates a bulb, n the plate where one or more vials are positioned and contain coloured alarming liquid that, in the case of a break-in attempt, release the liquid contained causing the colouring of the product and making it unusable and dirtying the hands of those trying to tamper with it. Such a plate is provided for a conformation of the seat to accommodate the vials on the base that allows adjusting the effort required to cause the breakage of said vials when a break-in attempt is made on the anti-theft device by a dishonest person.