No more nail holes to fillBeing able to adjust up-and-down without having to take a body down each timeSuitable for 1-2 mm chrome steel cable. 30 kg max load capacityNo slipping on wireGreat for striking a number of pictures on a twine attached to a picture moulding rail. Attention please: This is the hook that attaches to the cable and hangs the frame, and never the one that attaches to the rail