51mm wide laminated steel body for maximum strength and reliability, and is surrounded by stainless steel and zinc outer components for weather resistance. The 3/8in (10mm) diameter octagonal shackle is 1-1/2in (38mm) long and made of Tough-Cut™ boron-carbide, 50% harder than hardened steel, offering maximum resistance to cutting and sawing. The 4-pin cylinder prevents picking and the dual locking ball bearings provide maximum resistance against prying and hammering. The Lifetime Guarantee provides peace of mind from a brand you can trust.

• Magnum® #1 Choice of Professionals
• Tough-Cut™ octagonal boron-carbide shackle is 50% harder than hardened steel
• 51mm Shackle clearance for more uses
• Dual-Armor™ protection: 1-3/4in (51mm) laminated steel core for strength surrounded by stainless steel & zinc outer components for weather resistance
• Dual ball bearing locking for maximum pry resistance