The hardened triple heat-treated boron manganese steel chains include 10mm six-sided links. The integrated chains secure with a new patent-pending integrated Evolution series 4 lock head. This innovative series of chains also feature a patent-pending pin-less design which secures the chain to a hardened deadbolt and allows for no weak link in the chain due to extensive holding power of the link itself against attacks. Chains are enclosed in a nylon-webbing sleeve to protect paint from scratches and allow for easy portability & tight coiling during storage.
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