The Master Lock Magnum no. M515XKADLJ laminated padlock features a 2-1/8 In. (54 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 3/8 In. (10 mm) diameter octagonal shackle is 2-1/2 In. (64 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. • Magnum; choice of professionals • Rust-Oleum; certified protection guarantees lock body will not rust • Tough-Cut octagonal boron-carbide shackle is 50% harder than hardened steel • 2.5-in (64mm) shackle clearance for more uses • Dual-armor construction: 2.13-in (54 mm) wide laminated steel core with weather-resistant cover protects against snow, rain, dirt, mud, grime and salt • Covered keyway and shackle seals for added weather protection • Dual ball bearing locking for maximum pry resistance • 4-pin cylinder for increased pick resistance UPC: 071649169502 Weight: 0.57 lbs RKU: LOW363523