The laminated padlock Master Lock Excell No. M115EURDLF features a 49 mm wide laminated steel body that is extremely strong and reliable. The outer components made of stainless steel and zinc provide weather resistance. The Rust-Oleum certified protection offers a lifetime limited warranty against rust on the lock body. The cover for the body, keyway, and shackle seal provides additional weather protection. The octagonal shackle, with a diameter of 8 mm and a length of 38 mm, is made from Tough-Cut Boron carbide, which is 50% harder than hardened steel and offers maximum resistance to cutting and sawing. The 4-pin locking cylinder prevents the lock from being picked, while the two ball bearing locking mechanisms protect against forced entry or smashing. The lifetime limited warranty gives you the assurance of a brand you can trust. Rust-Oleum Certified Protection is a registered trademark of Rust-Oleum Corporation.