Stainless Steel Bow Shackle, 4mm, Silver Color,for Paracord Jewelry, Marine Tackle-10 Pieces ,generic Mini shackle is great for jewelry and hardware,Using for stronger and safer attachment of dog tags to dog collars Marine shackle made by stainless steel 316,very durable and never rust D ring shackle used for marine mounting and hardware Great for paracord and survival jewelry,1/2 inch inside diameter they are not very shine,just the original colors of stainless steel