2-3/4" Wide, Disk Shaped, High Security, Shielded Padlock, Stainless Steel Body For Excellent Corrosion Resistance, 2 Anti-Saw Levers Inside Lock Body Deters Cutting, Double Locking Deadbolt Action With Key Retaining Feature, Brass Keys, Broken Key Extraction Hole, Up To 600 Different Key Cuts, Uses Master Lock Key Blank K1BOX Or Ilco Blank M1 TV #320-952, Lifetime Warranty, Carded.