Squire G4 High Security Chain is part of the Stronghold range of Squire chains. These chains offer very high security. Ideal for locking perimeter gates, substations, heavy goods vehicles etc. These chains would be recommended where there is an increased health and safety risk to the public or employees. Any chain displaying the Sold Secure logo has to undergo extensive and prolonged attack tests. This range has achieved Gold, proving that they are worthy of the respected Stronghold name. CRIMESTOPPERS supported. Length: 1200mm. Diameter: 10mm.