Product anti-theft device, in particular for textile products

Product anti-theft device which is designed to be attached to products that are to be protected, the anti-theft device comprising:

• a housing;
• and
• a locking mechanism, the locking mechanism comprising a needle, the needle being movable between an engaged position, in which it engages with the product that is to be protected, and a release position, in which it allows the product anti-theft device to be released and removed from the product that is to be protected,
• wherein:
• the housing has a substantially flat form with a main plane;
• and
• the locking mechanism also comprises a needle-receiving element attached to the housing, on which needle-receiving element the needle is fixedly held and which needle-receiving element is displaceable in a direction substantially orthogonal to the main plane of the housing in order to transfer the needle from the engaged position into the release position and from the release position into the engaged position,
• the needle-receiving element being substantially fully accommodated in the housing when the needle is in the engaged position.