2", Universal Pin Padlock, With 1-1/2" Long Shackle For Master Lock Universal Pin System, No Keys Included, Use Hand Held Keying Tool #376, TV #575-563 To Rekey Universal Pin Padlock, 3/8" Shackle Diameter, Uses Master Lock Key Blank K1BOX Or Ilco Blank M1 TV #320-952, Boxed.