The Granit 640 mini U-locks feature special steel to make it an ultra-light and strong mini lock.

• 12mm thick round temper hardened steel shackle
• Four locking points increase security
• Plus key features over 250,000 key variations
• Security Rating: 12 of 15
• Advertised Weight: 3.3
• Diameter: 12
• Lock Style: Keyed
• Cable Included: No
• Length: 6