Kryptonite Evolution Series 4 1090 Integrated Chain


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  • 10mm six-sided chain links made from 3t manganese steel
  • Patent-pending end link design secures chain to hardened deadbolt eliminating critical vulnerability
  • High security disc-style cylinder is pick and drill resistant
  • Patented*, reinforced oval crossbar lock head
  • Sliding dustcover protects and extends cylinder life
  • 3 stainless steel keys ā€“ one LED lighted key with replaceable battery and 2 new, ergonomic ā€˜Iā€ keys
  • Durable weather-resistant nylon sleeve prevents scratches
  • Key Safe Program