Integrated slip hook design Patent pending. Easy to release manually, minimal force reguired even with high tension lashings. Quick, Safe and Simple installation reducing risk of incorrect fitting. No further accessories needed. Maintenance free, 4-year Operational Service Life. Total hight 100mm with out shackle. Strap opening 40mm Installation height with shackle 125mm. Weight 383 g. 4 years/48 months service time after correct installation.