Laminated Steel - 4-Pin Cylinder</br>Dual Locking Shackle</br></br>Product Description</br></br>1-3/4" Laminated Padlock, Keyed Alike To #2001, 15/16" Shackle, 5/16" Shackle Diameter, Uses Master Lock Key Blank K1BOX Or Ilco Blank M1 TV #320-952, Boxed.</br><br/>http://www.amazon.com/gp/product/B00GRT99NW