The pre-formed channel on these innovative wire protectors (aka Cable Thimbles and Wire Guardians™) prevents fraying on stringing cable and cord. It is usually placed where you make a loop to attach the clasp. Don't pinch closed — the horseshoe design allows for some slack on the cord to reduce stress. Choose from size 1 and size 2 wire guards in several platings, plus silver fill, gold fill, and sterling silver.
