Kryptonite
Evolution Series 4 Chain Lock

Features:

• 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