Jack Chain Black 16gge, Black Toned Steel -- for hanging stained glassMaterial Location: The StoreUnit Cost: $2.25Unit: 1 foot lengthEquipment: Glastar Super Star II Glass Grinder with Plexi ShieldInland Wiz Glass Grinder with Mr. Splash Shield Supplier Source Information These are the suppliers that MakeHaven purchases these items from. Material Source: 17868- Rainbow Glass