Features an integrated KryptoLok series 2 lock head with a talon deadbolt and 9.5mm 4-sided chain links made of 3t manganese steel Features: High security disc-style cylinder is pick and drill resistant; resists most common hand tools Weather-resistant nylon sleeve prevents scratches to painted finishes and compact coiling provides for easy carrying Pin-less link design secures chain to a hardened deadbolt and offers no weak link in the chain Includes 2 standard, stainless steel "I" keys Security Rating: 6 out of 10 Specifications: Weight: 6.7lbs Length: 47cm Diameter: 9mm