50 mm Flange Tow Ball, zinc plated, fits for two-bolt flange towbar, value D 17 kn, value S ... 205 kg. • 50 mm Forged Tow Ball fits ... for Two-bolt Flange Towbar• Finish: Zinc plated• Value D: ... forged hooks & shackles, tow ropes & straps, hitch balls, ball mounts, trailer couplers, trailer connectors, bike racks, etc. ...