SesameeĀ® 197-K436 Padlock, Bottom Resettable, 4-Dial, Keyless, Body Width: 1-7/8 Inch, Body Material: Solid Brass, Satin, Shackle Diameter: 5/16 Inch, Shackle Height: 1 Inch, Shackle Inner Width: 1 Inch, Shackle Material: Chrome Plated Hardened Steel