Internal Diameter: 25.0 mm (0.984”). Material: Alloy Steel. Finish: Silver or Golden Yellow Galvanized. Breaking Strength: 15kN. Diameter: Polyamide Twisted Rope For 14.0 mm – 16.0 mm and 12.0 mm for Kernmantle Rope. Certified to: EN 353-2:2002. Weighs 873.0 gms ± 10.0 gms.