The Master Lock Magnum no. M115kalf laminated padlock features a 1-7/8 In (48 mm) wide laminated steel body for maximum strength and reliability, and is surrounded by stainless steel and zinc outer components for weather resistance. The Rust-Oleum certified protection provides a lifetime guarantee against rusting on the lock body; and covered clock body, keyway, and shackle seals offer additional weather protection. The 5/16 In (8 mm) diameter octagonal shackle is 1-1/2 In (38 mm) 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. Rust-Oleum certified protection is a registered trademark of Rust-Oleum corporation. • Magnum 1 choice of professionals • Rust-Oleum certified protection guarantees lock body will not rust • Tough-Cut octagonal boron-carbide shackle is 5% harder than hardened steel • 1-1/2 In (38 mm) shackle clearance for more uses • Dual-armor construction: 1-7/8 In. (48 mm) wide laminated steel core with weather resistant cover, shackle seals, and keyway cover protects against snow, rain, dirt, mud, grime and salt • Dual ball bearing locking for maximum pry resistance UPC: 071649156816 Weight: 0.5 lbs RKU: LOW3726775