STAS Zipper Security Hook

Self-locking Picture Hanging Security Hook Gallery Hook with flat back makes more stable.

You just push the lever with one hand to slide up and down along the suspended cable when you release the lever hook would be automatically locked on the cable. Push the latch with a finger to hang the picture on the hook when you release the latch hook will lock the picture automatically. to release the picture you need to press the latch again. A simple theft delay hook.