10cm wide hardened steel u lock with 20cm shackle length; black

The Master Lock No. 8170EURDPRO U-Lock features a 10cm wide hardened steel body for maximum strength and reliability. The 12mm diameter double locking shackle is 20cm long and made of hardened steel, offering extra resistance to prying, cutting and sawing. The disc key cylinder prevents picking. The Limited Lifetime Warranty provides peace of mind from a brand you can trust.