Squire J3 Round Section Hard Boron Alloy Chain 90cm x 8mmSquire J3 Round Section Hard Boron Alloy 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 Silver,