The Master Lock Excell No. M515EURDLH Laminated Padlock features a 54mm 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 Limited Lifetime Warranty against rusting on the lock body. Covered clock body, keyway, and shackle seals offer additional weather protection against snow, rain, dirt, mud, grime, and salt. The 10mm diameter octagonal shackle is 51mm 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 dual locking ball bearings provide maximum resistance against prying and hammering. This padlock is ideal for storage units, sheds, garages, fences, and more. Specifications include: Body dimensions (H x W x D) 11 x 5.4 x 3.1 cm, Shackle dimensions (H x W x D) 5.1 x 2.4 x 1 cm. Comes with 1 padlock and 4 keys. Backed by a Limited Lifetime Guarantee.