Master Lock Bike U-Lock with Key
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The Master Lock No. 8170D U-Lock features a 6-1/8 in. (15 cm) W hardened steel body for maximum strength and reliability. The 1/2 in. (13 mm) Dia double locking shackle is 8 in. (20 cm) L 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.