A set of 6 micro stoppers for ultrathin cracks, seams, and fissures. Copper-infiltrated iron heads for tenacious bite while reducing shearing. Galvanized cables are stronger, more flexible than traditional steel, making them less prone to fraying after repeated use. Transverse tapers allow sideways placement. Rounded corners for easier removal. Thicknesses range from 0.2 to 0.345 inches. Stoppers are neatly attached to an oval-wire biner