The product is manufactured in China</br>The product is highly durable and easy to use</br>Easy installation and easy handling</br>4-pin tumbler security</br>Hardened steel shackle</br>Solid brass lock body is stylish and strong</br>Special limited-use keyway design for added security</br>Hardened steel shackle?? 4 pin tumbler</br></br>Product Description</br></br>Master Lock 140D 1-9/16-inch solid body padlock. Hardened steel shackle for superior cut resistance. 4-pin cylinder helps prevent picking.</br><br/>http://www.amazon.com/gp/product/B00004SQL7