The Kryptonite Kryptolok features: 

• Kryptonite security levels: 1 (Low) - 10 (High) 
• 13mm hardened Max-Performance steel shackle resists cutting and leverage attacks 
• Reinforced hardened cross bar design provides increased protectionHigh security disc-style cylinder 
• Anti-Rattle bumpers reduce noise during transportation 
• Rotating dust cover protects cylinder from dirt and debris 
• Includes new transit Flexframe-U transportation system which allows for versatile carrying 
• Protective vinyl coating 
• 2 stainless steel keys 
• Key Safe program