Abstract: The invention relates to an anti-theft device, especially for skis, comprised of a cable (3), a cable drum (2) specially connected to an end of the cable (11) in a fixed manner and a locking device (4) which contains at least one clamping element (12, 13) is provided for fixing the cable (3) which is inserted into the locking device (4). In addition, the clamping element interacts with the lock (8) in such a way that the clamping element (12, 13) releases the cable (3) when the lock (8) is opened and prevents the cable from being pulled out in a direction contrary to the direction of insertion when the lock is closed (8). The clamping (12, 13) is mounted such that it can rotate and be moved in the locking device (4). The clamping element interacts with the lock (8) via a pivoted lever (22, 23).