The Master Lock No. 6125 ProSeries® Weather Tough® Covered Laminated Padlock features a 2-3/8in (60mm) wide heavy steel body to withstand physical attack and a 1-3/8in (35mm) tall, 3/8in (10mm) diameter hardened boron alloy shackle for superior cut resistance. The exclusive cover protects this padlock from harsh elements. Cylinders for this lock in various keyways may be ordered separately.