3 Inch Carabiner Heavy Duty Spring Snap Hook D Shape Steel Clip Link Buckle M8x80mm 4pcsBrand: OWAYOTO Standard: M8 x 80mmTotal size: 80 x 40mm / 3.15x WDiameter: 0.31inch (8mm)Material: ZincGalvanized SteelColor: Black Feature: Perfect for backpack, key ring, chains, ropes, camping, hiking, fishing, pet leash, indoor outdoor equipment gear, DIY accessories