Brinks, 1-1/2" Long Shackle Laminated Steel Pin Tumbler Padlock, Double Locking, 2-1/2" Case Hardened Long Steel Shackle, Solid Brass Pin Tumbler In Laminated Steel Body, Uses Key Blank Item #182-444, Z11 Protection Plating, 1/4" Shackle Diameter, Visual Pack.