Do-It Master Lock Ultimate Strength 70mm Stainless Steel Combination Discus Padlock Discus Padlock features a 70mm wide stainless steel body for maximum strength, reliability and corrosion resistance. The fully shrouded design minimizes shackle exposure and protects against bolt cutter attacks. 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. 4 digit resettable combination for maximum security. Dual locking ball bearings provide maximum resistance against prying and hammering. Reinforced body bumper protects against scratches. Features: - Model No. M40EURDNM - Excel 70mm mm discus padlock, - Stainless Steel, - Octagonal Boron shackle - 4 Digit re-settable combination - Security rating 8,10 - Limited Lifetime Warranty