The Master Lock Excell® No. M40EURDNUM Solid Body Padlock features a 70mm wide stainless steelbody for strength, reliability and corrosion resistance. The 10mm diameter octagonal shackle is 16mm long and made of Tough-Cut™ boron-carbide, 50% harder than hardened steel, offering maximum resistance to cutting and sawing. The reinforced body bumper protects against scratches. The lock includes Set-Your-Own combination convenience, with the need of the included reset tool. The Limited Lifetime Warranty provides peace of mind from a brand you can trust.