The Master Lock No. 311KA Covered Laminated Padlock, Keyed Alike – multiple locks open with the same key – features a 40mm wide laminated steel body and a 25mm tall, 10mm diameter hardened steel shackle with molded cover for superior cut and weather resistance. A black weather resistant thermoplastic shell is designed to withstand the elements for outdoor protection against moisture, dirt & grime. Dual locking levers provide additional pry resistance and a 4-pin cylinder adds pick resistance. Outdoor protection against moisture, dirt & grime Black weather resistant thermoplastic shell designed to withstand the elements 40mm wide laminated steel body for superior strength Hardened steel shackle with molded cover Dual locking levers for added pry resistance 4-pin cylinder for added pick resistance Keyed alike to a specific key cod