This is a high quality padlock from Brinks. It has a 1-1/2in (38mm) wide anodized aluminum body that is resistant to corrosion and ideal for use in tough environments. The chrome plated, hardened steel shackle is 1in (25mm) tall and 1/4in thick, making it very tough to cut through. The padlock also features dual ball bearings for added security and is weather resistant, making it ideal for use outdoors. It has a 3/8in shackle diameter and a 5/8in overall height, and comes with two keys. The Brinks Green Anodized Solid Body Padlock is a reliable and durable choice for securing your belongings.