Hardened steel shackle for extra cut resistance</br>4-Pin cylinder helps prevent picking</br>Dual locking levers provide extra pry resistance</br>Thousands of key changes maximize key integrity</br>Proprietary rustproofing for longer life</br></br>Product Description</br></br>Master Lock 3QLF 4-Pack of 1-9/16-inch (40mm) padlock with 1-1/2-inch (38mm) shackle?? all keyed alike. Hardened steel shackle for superior cut resistance. Dual locking levers provide extra pry resistance.</br><br/>http://www.amazon.com/gp/product/B000EUF77M