Kryptonite Evolution Series 4 1090 Integrated Chain Lock

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 – one LED lighted key with replaceable battery and 2 new, ergonomic ‘I” keys Durable WEATHER-RESISTANT nylon sleeve prevents scratches Key Safe Program Product dimensions: 35.5” (90cm) chain length Product weight: 6.10 lbs (2.77 kgs)